Marcus R. Johnson

Physician Non-adherence to Colonoscopy Interval Guidelines in the Veterans Affairs Healthcare System

Marcus R. Johnson, Janet M. Grubber, Steven C. Grambow et al. · Gastroenterology · 2015 · 78 citations

Primary Care, Health Policy, Colorectal Surgery +6

Underuse and Overuse of Colonoscopy for Repeat Screening and Surveillance in the Veterans Health Administration

Caitlin C. Murphy, Robert S. Sandler, Janet M. Grubber et al. · Clinical Gastroenterology and Hepatology · 2015 · 74 citations · Full text

Health Policy, Cancer Screening, Patient Safety +9

Towards a Rigorous Basis for Specific Operations Risk Assessment of UAS

Ewen Denney, Ganesh Pai, Marcus R. Johnson · 2018 · 32 citations

Safety Case, Engineering, Information Security +24

Gender-based Differences among 1990–1991 Gulf War Era Veterans: Demographics, Lifestyle Behaviors, and Health Conditions

Mackenzie C. Brown, Kellie J. Sims, Elizabeth J. Gifford et al. · Women s Health Issues · 2019 · 32 citations · Full text

Health Conditions, Gender-based Differences, Military Context +9

An initiative using informatics to facilitate clinical research planning and recruitment in the VA health care system

Kandi Velarde, Jennifer Romesser, Marcus R. Johnson et al. · Contemporary Clinical Trials Communications · 2018 · 25 citations · Full text