Patrick B. Ryan

77 papers Misc 18Journal 55Unranked 4

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	PDA in Action: Ten Principles for High-Quality Multi-Site Clinical Evidence Generation. CoRR Yong Chen, Jiayi Tong, Yiwen Lu, Rui Duan, Chongliang Luo, Marc A. Suchard, Patrick B. Ryan, Andrew E. Williams, John H. Holmes, Jason H. Moore, Hua Xu, Yun Lu, Raymond J. Carroll, Scott L. Zeger, George Hripcsak, Martijn J. Schuemie
2025	J	`jnl`	CLEAR: A vision to support clinical evidence lifecycle with continuous learning. J. Biomed. Informatics Yilu Fang, Gongbo Zhang, Fangyi Chen, George Hripcsak, Yifan Peng, Patrick B. Ryan, Chunhua Weng
2025	J	`jnl`	Evaluating the Bias, type I error and statistical power of the prior Knowledge-Guided integrated likelihood estimation (PIE) for bias reduction in EHR based association studies. J. Biomed. Informatics Naimin Jing, Yiwen Lu, Jiayi Tong, James Weaver, Patrick B. Ryan, Hua Xu, Yong Chen
2025	J	`jnl`	Evaluation of the impact of defining observable time in real-world data on outcome incidence. J. Am. Medical Informatics Assoc. Clair Blacketer, Frank J. DeFalco, Mitchell M. Conover, Patrick B. Ryan, Martijn J. Schuemie, Peter R. Rijnbeek
2025	J	`jnl`	Objective study validity diagnostics: a framework requiring pre-specified, empirical verification to increase trust in the reliability of real-world evidence. J. Am. Medical Informatics Assoc. Mitchell Conover, Patrick B. Ryan, Yong Chen, Marc A. Suchard, George Hripcsak, Martijn J. Schuemie
2025	J	`jnl`	Standardized patient profile review using large language models for case adjudication in observational research. npj Digit. Medicine Martijn J. Schuemie, Anna Ostropolets, Aleh Zhuk, Uladzislau Korsik, Seung In Seo, Marc A. Suchard, George Hripcsak, Patrick B. Ryan
2024	J	`jnl`	OHDSI Standardized Vocabularies - a large-scale centralized reference ontology for international data harmonization. J. Am. Medical Informatics Assoc. Christian G. Reich, Anna Ostropolets, Patrick B. Ryan, Peter R. Rijnbeek, Martijn J. Schuemie, Alexander Davydov, Dmitry Dymshyts, George Hripcsak
2023	J	`jnl`	A standardized framework for risk-based assessment of treatment effect heterogeneity in observational healthcare databases. npj Digit. Medicine Alexandros Rekkas, David van Klaveren, Patrick B. Ryan, Ewout W. Steyerberg, David M. Kent, Peter R. Rijnbeek
2023	J	`jnl`	An Open-Source Knowledge Graph Ecosystem for the Life Sciences. CoRR Tiffany J. Callahan, Ignacio J. Tripodi, Adrianne L. Stefanski, Luca Cappelletti, Sanya Bathla Taneja, Jordan M. Wyrwa, Elena Casiraghi, Nicolas A. Matentzoglu, Justin T. Reese, Jonathan C. Silverstein, Charles Tapley Hoyt, Richard D. Boyce, Scott A. Malec, Deepak R. Unni, Marcin P. Joachimiak, Peter N. Robinson, Christopher J. Mungall, Emanuele Cavalleri, Tommaso Fontana, Giorgio Valentini, Marco Mesiti, Lucas A. Gillenwater, Brook E. Santangelo, Nicole A. Vasilevsky, Robert Hoehndorf, Tellen D. Bennett, Patrick B. Ryan, George Hripcsak, Michael G. Kahn, Michael Bada, William A. Baumgartner Jr., Lawrence E. Hunter
2023	J	`jnl`	Correction to: Adaptation and validation of a coding algorithm for the Charlson Comorbidity Index in administrative claims data using the SNOMED CT standardized vocabulary. BMC Medical Informatics Decis. Mak. Stephen P. Fortin, Jenna Reps, Patrick B. Ryan
2023	J	`jnl`	Ontologizing health systems data at scale: making translational discovery a reality. npj Digit. Medicine Tiffany J. Callahan, Adrianne L. Stefanski, Jordan M. Wyrwa, Chenjie Zeng, Anna Ostropolets, Juan M. Banda, William A. Baumgartner Jr., Richard D. Boyce, Elena Casiraghi, Ben D. Coleman, Janine H. Collins, Sara J. Deakyne Davies, James A. Feinstein, Asiyah Y. Lin, Blake Martin, Nicolas A. Matentzoglu, Daniella Meeker, Justin T. Reese, Jessica Sinclair, Sanya Bathla Taneja, Katy E. Trinkley, Nicole A. Vasilevsky, Andrew E. Williams, Xingmin Aaron Zhang, Joshua C. Denny, Patrick B. Ryan, George Hripcsak, Tellen D. Bennett, Melissa A. Haendel, Peter N. Robinson, Lawrence E. Hunter, Michael G. Kahn
2023	J	`jnl`	Padé approximant meets federated learning: A nearly lossless, one-shot algorithm for evidence synthesis in distributed research networks with rare outcomes. J. Biomed. Informatics Qiong Wu, Martijn J. Schuemie, Marc A. Suchard, Patrick B. Ryan, George Hripcsak, Charles A. Rohde, Yong Chen
2023	J	`jnl`	Representing and utilizing clinical textual data for real world studies: An OHDSI approach. J. Biomed. Informatics Vipina Kuttichi Keloth, Juan M. Banda, Michael J. Gurley, Paul M. Heider, Georgina Kennedy, Hongfang Liu, Feifan Liu, Timothy Miller, Karthik Natarajan, Olga V. Patterson, Yifan Peng, Kalpana Raja, Ruth M. Reeves, Masoud Rouhizadeh, Jianlin Shi, Xiaoyan Wang, Yanshan Wang, Wei-Qi Wei, Andrew E. Williams, Rui Zhang, Rimma Belenkaya, Christian G. Reich, Clair Blacketer, Patrick B. Ryan, George Hripcsak, Noémie Elhadad, Hua Xu
2023	J	`jnl`	Reproducible variability: assessing investigator discordance across 9 research teams attempting to reproduce the same observational study. J. Am. Medical Informatics Assoc. Anna Ostropolets, Yasser Albogami, Mitchell Conover, Juan M. Banda, William A. Baumgartner Jr., Clair Blacketer, Priyamvada Desai, Scott L. DuVall, Stephen P. Fortin, James P. Gilbert, Asieh Golozar, Joshua Ide, Andrew S. Kanter, David M. Kern, Chungsoo Kim, Lana Y. H. Lai, Chenyu Li, Feifan Liu, Kristine E. Lynch, Evan Minty, Maria Inês Neves, Ding Quan Ng, Tontel Obene, Victor Pera, Nicole Pratt, Gowtham Rao, Nadav Rappoport, Ines Reinecke, Paola Saroufim, Azza Shoaibi, Katherine Simon, Marc A. Suchard, Joel N. Swerdel, Erica A. Voss, James Weaver, Linying Zhang, George Hripcsak, Patrick B. Ryan
2023	J	`jnl`	Scalable and interpretable alternative to chart review for phenotype evaluation using standardized structured data from electronic health records. J. Am. Medical Informatics Assoc. Anna Ostropolets, George Hripcsak, Syed A. Husain, Lauren R. Richter, Matthew E. Spotnitz, Ahmed Elhussein, Patrick B. Ryan
2022	J	`jnl`	Adaptation and validation of a coding algorithm for the Charlson Comorbidity Index in administrative claims data using the SNOMED CT standardized vocabulary. BMC Medical Informatics Decis. Mak. Stephen P. Fortin, Jenna Reps, Patrick B. Ryan
2022	J	`jnl`	Learning patient-level prediction models across multiple healthcare databases: evaluation of ensembles for increasing model transportability. BMC Medical Informatics Decis. Mak. Jenna Marie Reps, Ross D. Williams, Martijn J. Schuemie, Patrick B. Ryan, Peter R. Rijnbeek
2022	J	`jnl`	Logistic regression models for patient-level prediction based on massive observational data: Do we need all data? Int. J. Medical Informatics Luis H. John, Jan A. Kors, Jenna Marie Reps, Patrick B. Ryan, Peter R. Rijnbeek
2022	J	`jnl`	Ontologizing Health Systems Data at Scale: Making Translational Discovery a Reality. CoRR Tiffany J. Callahan, Adrianne L. Stefanski, Jordan M. Wyrwa, Chenjie Zeng, Anna Ostropolets, Juan M. Banda, William A. Baumgartner Jr., Richard D. Boyce, Elena Casiraghi, Ben D. Coleman, Janine H. Collins, Sara J. Deakyne Davies, James A. Feinstein, Melissa A. Haendel, Asiyah Y. Lin, Blake Martin, Nicolas Matentzoglu, Daniella Meeker, Justin T. Reese, Jessica Sinclair, Sanya Bathla Taneja, Katy E. Trinkley, Nicole A. Vasilevsky, Andrew E. Williams, Xingman A. Zhang, Peter N. Robinson, Patrick B. Ryan, George Hripcsak, Tellen D. Bennett, Lawrence E. Hunter, Michael G. Kahn
2022	J	`jnl`	PheValuator 2.0: Methodological improvements for the PheValuator approach to semi-automated phenotype algorithm evaluation. J. Biomed. Informatics Joel N. Swerdel, Martijn J. Schuemie, Gayle Murray, Patrick B. Ryan
2022	Misc	`conf`	Phenotyping in distributed data networks: selecting the right codes for the right patients. AMIA Anna Ostropolets, Patrick B. Ryan, George Hripcsak
2021	J	`jnl`	A conceptual framework for external validity. J. Biomed. Informatics Amelia J. Averitt, Patrick B. Ryan, Chunhua Weng, Adler J. Perotte
2021	J	`jnl`	An empirical analysis of dealing with patients who are lost to follow-up when developing prognostic models using a cohort design. BMC Medical Informatics Decis. Mak. Jenna Marie Reps, Peter R. Rijnbeek, Alana Cuthbert, Patrick B. Ryan, Nicole Pratt, Martijn J. Schuemie
2021	J	`jnl`	Data Consult Service: Can we use observational data to address immediate clinical needs? J. Am. Medical Informatics Assoc. Anna Ostropolets, Philip Zachariah, Patrick B. Ryan, Ruijun Chen, George Hripcsak
2021	J	`jnl`	Design matters in patient-level prediction: evaluation of a cohort vs. case-control design when developing predictive models in observational healthcare datasets. J. Big Data Jenna Marie Reps, Patrick B. Ryan, Peter R. Rijnbeek, Martijn J. Schuemie
2021	J	`jnl`	Erratum to: Large-Scale Evidence Generation and Evaluation across a Network of Databases (LEGEND): Assessing Validity Using Hypertension as a Case Study. J. Am. Medical Informatics Assoc. Martijn J. Schuemie, Patrick B. Ryan, Nicole Pratt, Ruijun Chen, Seng Chan You, Harlan M. Krumholz, David Madigan, George Hripcsak, Marc A. Suchard
2021	J	`jnl`	From clinical trials to clinical practice: How long are drugs tested and then used by patients? J. Am. Medical Informatics Assoc. Chi Yuan, Patrick B. Ryan, Casey N. Ta, Jae Hyun Kim, Ziran Li, Chunhua Weng
2021	J	`jnl`	Increasing trust in real-world evidence through evaluation of observational data quality. J. Am. Medical Informatics Assoc. Clair Blacketer, Frank J. DeFalco, Patrick B. Ryan, Peter R. Rijnbeek
2021	Misc	`conf`	PHenotype Observed Entity Baseline Endorsements (PHOEBE) - recommender system for concept selection in phenotype algorithm development. AMIA Anna Ostropolets, Patrick B. Ryan, George Hripcsak
2021	J	`jnl`	Towards clinical data-driven eligibility criteria optimization for interventional COVID-19 clinical trials. J. Am. Medical Informatics Assoc. Jae Hyun Kim, Casey N. Ta, Cong Liu, Cynthia Sung, Alex M. Butler, Latoya A. Stewart, Lyudmila Ena, James R. Rogers, Junghwan Lee, Anna Ostropolets, Patrick B. Ryan, Hao Liu, Shing M. Lee, Mitchell S. V. Elkind, Chunhua Weng
2020	J	`jnl`	Adapting electronic health records-derived phenotypes to claims data: Lessons learned in using limited clinical data for phenotyping. J. Biomed. Informatics Anna Ostropolets, Christian G. Reich, Patrick B. Ryan, Ning Shang, George Hripcsak, Chunhua Weng
2020	Misc	`conf`	Characterization and Comparison of Embedding Algorithms for Phenotyping across a Network of Observational Databases. AMIA Chao Pang, Ruijun Chen, Harry Reyes Nieva, Krishna Kalluri, Tony Sun, Xinzhuo Jiang, Victor Alfonso Rodriguez, Patrick B. Ryan, Karthik Natarajan
2020	Misc	`conf`	Characterizing database granularity using SNOMED-CT hierarchy. AMIA Anna Ostropolets, Christian G. Reich, Patrick B. Ryan, Chunhua Weng, Anthony Molinaro, Frank J. DeFalco, Jitendra Jonnagaddala, Siaw-Teng Liaw, Hokyun Jeon, Rae Woong Park, Matthew E. Spotnitz, Karthik Natarajan, Kristin Kostka, George Argyriou, Robert T. Miller, Andrew E. Williams, Evan Minty, José D. Posada, George Hripcsak
2020	Misc	`conf`	Contemporary Use of Real World Data for Clinical Trial Conduct. AMIA James R. Rogers, Junghwan Lee, Ziheng Zhou, Patrick B. Ryan, George Hripcsak, Chunhua Weng
2020	Misc	`conf`	Evaluation of Large-scale Propensity Score Modeling and Covariate Balance on Potential Unmeasured Confounding in Observational Research. AMIA Ruijun Chen, Martijn J. Schuemie, Marc A. Suchard, Anna Ostropolets, Linying Zhang, Patrick B. Ryan, George Hripcsak
2020	J	`jnl`	How little data do we need for patient-level prediction? CoRR Luis H. John, Jan A. Kors, Jenna Marie Reps, Patrick B. Ryan, Peter R. Rijnbeek
2020	J	`jnl`	Large-scale evidence generation and evaluation across a network of databases (LEGEND): assessing validity using hypertension as a case study. J. Am. Medical Informatics Assoc. Martijn J. Schuemie, Patrick B. Ryan, Nicole Pratt, Ruijun Chen, Seng Chan You, Harlan M. Krumholz, David Madigan, George Hripcsak, Marc A. Suchard
2020	Misc	`conf`	Phenotype Concept Set Construction from Concept Pair Likelihoods. AMIA Victor Alfonso Rodriguez, Tony Sun, Phyllis Thangaraj, Chao Pang, Krishna Kalluri, Xinzhuo Jiang, Karthik Natarajan, Patrick B. Ryan, Anna Ostropolets, Ruijun Chen
2020	J	`jnl`	Principles of Large-scale Evidence Generation and Evaluation across a Network of Databases (LEGEND). J. Am. Medical Informatics Assoc. Martijn J. Schuemie, Patrick B. Ryan, Nicole Pratt, Ruijun Chen, Seng Chan You, Harlan M. Krumholz, David Madigan, George Hripcsak, Marc A. Suchard
2020	J	`jnl`	Translating evidence into practice: eligibility criteria fail to eliminate clinically significant differences between real-world and study populations. npj Digit. Medicine Amelia J. Averitt, Chunhua Weng, Patrick B. Ryan, Adler J. Perotte
2019	J	`jnl`	Challenges with quality of race and ethnicity data in observational databases. J. Am. Medical Informatics Assoc. Fernanda C. Polubriaginof, Patrick B. Ryan, Hojjat Salmasian, Andrea W. Shapiro, Adler J. Perotte, Monika M. Safford, George Hripcsak, Shaun Smith, Nicholas P. Tatonetti, David K. Vawdrey
2019	J	`jnl`	Criteria2Query: a natural language interface to clinical databases for cohort definition. J. Am. Medical Informatics Assoc. Chi Yuan, Patrick B. Ryan, Casey N. Ta, Yixuan Guo, Ziran Li, Jill Hardin, Rupa Makadia, Peng Jin, Ning Shang, Tian Kang, Chunhua Weng
2019	Misc	`conf`	Learning Across a Healthcare Data Network to Improve Model Robustness and Evidence Reliability. AMIA Noémie Elhadad, Iñigo Urteaga, Alison Callahan, Jenna Reps, Patrick B. Ryan
2019	J	`jnl`	PheValuator: Development and evaluation of a phenotype algorithm evaluator. J. Biomed. Informatics Joel N. Swerdel, George Hripcsak, Patrick B. Ryan
2019	J	`jnl`	Supplementing claims data analysis using self-reported data to develop a probabilistic phenotype model for current smoking status. J. Biomed. Informatics Jenna Marie Reps, Peter R. Rijnbeek, Patrick B. Ryan
2018	J	`jnl`	Decentralized and reproducible geocoding and characterization of community and environmental exposures for multisite studies. J. Am. Medical Informatics Assoc. Cole Brokamp, Chris Wolfe, Todd Lingren, John Harley, Patrick B. Ryan
2018	J	`jnl`	Design and implementation of a standardized framework to generate and evaluate patient-level prediction models using observational healthcare data. J. Am. Medical Informatics Assoc. Jenna Marie Reps, Martijn J. Schuemie, Marc A. Suchard, Patrick B. Ryan, Peter R. Rijnbeek
2018	J	`jnl`	Effect of vocabulary mapping for conditions on phenotype cohorts. J. Am. Medical Informatics Assoc. George Hripcsak, Matthew E. Levine, Ning Shang, Patrick B. Ryan
2018	J	`jnl`	The representativeness of eligible patients in type 2 diabetes trials: a case study using GIST 2.0. J. Am. Medical Informatics Assoc. Anando Sen, Andrew Goldstein, Shreya Chakrabarti, Ning Shang, Tian Kang, Anil Yaman, Patrick B. Ryan, Chunhua Weng
2018	Misc	`conf`	Treatment Pathways in Patients with Cancer Using a Large-scale Observational Data Network. AMIA Ruijun Chen, Patrick B. Ryan, Karthik Natarajan, Thomas Falconer, Christian G. Reich, Rohit Vashisht, Nigam Shah, George Hripcsak
2018	J	`jnl`	Uncovering exposures responsible for birth season - disease effects: a global study. J. Am. Medical Informatics Assoc. Mary Regina Boland, Pradipta Parhi, Li Li, Riccardo Miotto, Robert J. Carroll, Usman Iqbal, Phung-Anh (Alex) Nguyen, Martijn J. Schuemie, Seng Chan You, Donahue Smith, Sean D. Mooney, Patrick B. Ryan, Yu-Chuan (Jack) Li, Rae Woong Park, Joshua C. Denny, Joel T. Dudley, George Hripcsak, Pierre Gentine, Nicholas P. Tatonetti
2017	J	`jnl`	Accuracy of an automated knowledge base for identifying drug adverse reactions. J. Biomed. Informatics Erica A. Voss, Richard D. Boyce, Patrick B. Ryan, Johan van der Lei, Peter R. Rijnbeek, Martijn J. Schuemie
2017	Misc	`conf`	Criteria2Query: Automatically Transforming Clinical Research Eligibility Criteria Text to OMOP Common Data Model (CDM)-based Cohort Queries. AMIA Chi Yuan, Patrick B. Ryan, Yixuan Guo, Peng Jin, Tian Kang, Chunhua Weng
2017	Misc	`conf`	From Large-Scale Network Analytics to Clinical Solutions in OHDSI. AMIA Jon D. Duke, George Hripcsak, Patrick B. Ryan, Nigam Shah
2017	J	`jnl`	Large-scale adverse effects related to treatment evidence standardization (LAERTES): an open scalable system for linking pharmacovigilance evidence sources with clinical data. J. Biomed. Semant. Richard D. Boyce, Erica A. Voss, Vojtech Huser, Lee Evans, Christian G. Reich, Jon D. Duke, Nicholas P. Tatonetti, Tal Lorberbaum, Michel Dumontier, Manfred Hauben, Magnus Wallberg, Lili Peng, Sara Dempster, Yongqun He, Anthony G. Sena, Vassilis Koutkias, Pantelis Natsiavas, Patrick B. Ryan
2017	J	`jnl`	Procedure prediction from symbolic Electronic Health Records via time intervals analytics. J. Biomed. Informatics Robert Moskovitch, Fernanda Polubriaginof, Aviram Weiss, Patrick B. Ryan, Nicholas P. Tatonetti
2017	—	`conf`	The Impact of Censoring Drug Switching in Medication Adherence Measures of Chronic Single Ingredient Oral Drugs. MedInfo Vivienne J. Zhu, J. Marc Overhage, Qianli Ma, Patrick B. Ryan
2016	Misc	`conf`	Big Data for Healthcare and Life Sciences: Learning Useful Insights from Imperfect Data. AMIA Jianying Hu, Nigam H. Shah, Bradley A. Malin, Patrick B. Ryan, Anil Jain
2016	Misc	`conf`	Ensuring Reproducibility in Observational Research: Building and Sharing Knowledge Resources in the OHDSI Network. AMIA Jon D. Duke, Nigam H. Shah, George Hripcsak, Patrick B. Ryan
2016	J	`jnl`	GIST 2.0: A scalable multi-trait metric for quantifying population representativeness of individual clinical studies. J. Biomed. Informatics Anando Sen, Shreya Chakrabarti, Andrew Goldstein, Shuang Wang, Patrick B. Ryan, Chunhua Weng
2016	J	`jnl`	Hierarchical models for multiple, rare outcomes using massive observational healthcare databases. Stat. Anal. Data Min. Trevor R. Shaddox, Patrick B. Ryan, Martijn J. Schuemie, David Madigan, Marc A. Suchard
2016	J	`jnl`	Multivariate analysis of the population representativeness of related clinical studies. J. Biomed. Informatics Zhe He, Patrick B. Ryan, Julia Hoxha, Shuang Wang, Simona Carini, Ida Sim, Chunhua Weng
2016	—	`conf`	Observational Health Data Sciences and Informatics (OHDSI): A Rapidly Growing International Network for Open Science and Data Analytics in Healthcare. CRI Jon D. Duke, George Hripcsak, Nigam Shah, Patrick B. Ryan, Vojtech Huser
2016	—	`conf`	The Applicability of an EHR Phenotype for Cohort Identification. CRI Ning Shang, George Hripcsak, Patrick B. Ryan, Chunhua Weng
2015	J	`jnl`	Feasibility and utility of applications of the common data model to multiple, disparate observational health databases. J. Am. Medical Informatics Assoc. Erica A. Voss, Rupa Makadia, Amy Matcho, Qianli Ma, Chris Knoll, Martijn J. Schuemie, Frank J. DeFalco, Ajit Londhe, Vivienne J. Zhu, Patrick B. Ryan
2015	Misc	`conf`	OHDSI: An Open-Source Platform for Observational Data Analytics and Collaborative Research. AMIA Jon D. Duke, Frank J. DeFalco, Chris Knoll, Vojtech Huser, Richard D. Boyce, Patrick B. Ryan
2015	—	`conf`	Observational Health Data Sciences and Informatics (OHDSI): Opportunities for Observational Researchers. MedInfo George Hripcsak, Jon D. Duke, Nigam H. Shah, Christian G. Reich, Vojtech Huser, Martijn J. Schuemie, Marc A. Suchard, Rae Woong Park, Ian Chi Kei Wong, Peter R. Rijnbeek, Johan van der Lei, Nicole Pratt, G. Niklas Norén, Yu-Chuan Li, Paul E. Stang, David Madigan, Patrick B. Ryan
2015	J	`jnl`	Predicting health outcomes from high-dimensional longitudinal health histories using relational random forests. Stat. Anal. Data Min. Zach Shahn, Patrick B. Ryan, David Madigan
2015	Misc	`conf`	Simulation-based Evaluation of the Generalizability Index for Study Traits. AMIA Zhe He, Praveen Chandar Ravichandran, Patrick B. Ryan, Chunhua Weng
2015	Misc	`conf`	The Value of an Open-Source Observational Research Collaboratory: Results from the OHDSI Initiative. AMIA Jon D. Duke, George Hripcsak, Nigam Shah, Patrick B. Ryan
2014	J	`jnl`	Big data, big results: Knowledge discovery in output from large-scale analytics. Stat. Anal. Data Min. Tyler H. McCormick, Rebecca Ferrell, Alan F. Karr, Patrick B. Ryan
2014	Misc	`conf`	Transforming NHANES Database to the OMOP Common Data Model. AMIA Vivienne J. Zhu, Rupa Makadia, Amy Matcho, Martijn J. Schuemie, Patrick B. Ryan
2013	Misc	`conf`	Developing a Systematic Approach to Measure Medication Adherence. AMIA Vivienne J. Zhu, Patrick B. Ryan, J. Marc Overhage, Paul E. Stang, Jesse Berlin
2013	J	`jnl`	Massive Parallelization of Serial Inference Algorithms for a Complex Generalized Linear Model. ACM Trans. Model. Comput. Simul. Marc A. Suchard, Shawn E. Simpson, Ivan Zorych, Patrick B. Ryan, David Madigan
2012	J	`jnl`	Evaluation of alternative standardized terminologies for medical conditions within a network of observational healthcare databases. J. Biomed. Informatics Christian G. Reich, Patrick B. Ryan, Paul E. Stang, Mitra Rocca
2012	J	`jnl`	Validation of a common data model for active safety surveillance research. J. Am. Medical Informatics Assoc. J. Marc Overhage, Patrick B. Ryan, Christian G. Reich, Abraham G. Hartzema, Paul E. Stang
2010	J	`jnl`	Development and evaluation of a common data model enabling active drug safety surveillance using disparate healthcare databases. J. Am. Medical Informatics Assoc. Stephanie J. Reisinger, Patrick B. Ryan, Donald J. O'Hara, Gregory E. Powell, Jeffery L. Painter, Edward N. Pattishall, Jonathan A. Morris