Skip to content

Home Search Authors Pakistan News Saved

SciRah

SciRah does not host or store research papers. Results come live from free, official scholarly APIs, and every paper links back to its original source.

Data sources

OpenAlex
Semantic Scholar
Crossref
CORE
arXiv
PubMed

Privacy policy Terms of service

Marcus R. Johnson · SciRah

Researcher profile · Semantic Scholar

Marcus R. Johnson

Share profile

Marcus R. Johnson — researcher profile on SciRah

h-index: 7
Works: 18
Citations: 242

Most-cited papers

Physician Non-adherence to Colonoscopy Interval Guidelines in the Veterans Affairs Healthcare System.
Marcus R. Johnson, J. Grubber, S. Grambow, M. Maciejewski +3 more
2015Gastroenterology79 citations
Semantic Scholar
Underuse and Overuse of Colonoscopy for Repeat Screening and Surveillance in the Veterans Health Administration
C. Murphy, R. Sandler, J. Grubber, Marcus R. Johnson +1 more
2015Clinical Gastroenterology and Hepatology64 citations Open access
Semantic Scholar
Gender-based Differences among 1990–1991 Gulf War Era Veterans: Demographics, Lifestyle Behaviors, and Health Conditions
Mackenzie Brown, K. Sims, Elizabeth J. Gifford, Karen M. Goldstein +3 more
2019Women's health issues30 citations Open access
Semantic Scholar
A cross-cutting approach to enhancing clinical trial site success: The Department of Veterans Affairs' Network of Dedicated Enrollment Sites (NODES) model
Debra L. Condon, D. Beck, T. Kenworthy-Heinige, Karen Bratcher +5 more
2017Contemporary Clinical Trials Communications20 citations Open access
Semantic Scholar
Development and implementation of standardized study performance metrics for a VA healthcare system clinical research consortium.
Marcus R. Johnson, M. Raitt, A. Asghar, Debra L. Condon +2 more
2021Contemporary Clinical Trials11 citations Open access
Semantic Scholar
Research site mentoring: A novel approach to improving study recruitment
Marcus R. Johnson, T. Kenworthy-Heinige, D. Beck, A. Asghar +5 more
2018Contemporary Clinical Trials Communications10 citations Open access
Semantic Scholar
Increasing access to clinical research using an innovative mobile recruitment approach: The (MoRe) concept
D. Beck, A. Asghar, T. Kenworthy-Heinige, Marcus R. Johnson +32 more
2020Contemporary Clinical Trials Communications9 citations Open access
Semantic Scholar
An assessment of survey measures used across key epidemiologic studies of United States Gulf War I Era Veterans
R. McNeil, C. M. Thomas, S. Coughlin, E. Hauser +5 more
2013Environmental Health7 citations Open access
Semantic Scholar
1025 Further Validation of a Novel Patient Educational Booklet to Enhance Colonoscopy Preparation: Benefits in Single-Dose, but Not Split-Dose Preparations
Aaron Lee, M. Vu, Deborah A. Fisher, Rushabh Modi +3 more
20135 citations Open access
Semantic Scholar
Utilization of Lean Methodology to Refine Hiring Practices in a Clinical Research Center Setting.
Marcus R. Johnson, A. Bullard, R. L. Whitley
20183 citations
Semantic Scholar
344 Factors Associated With Non-Adherence to Colonoscopy Interval Guidelines in an Integrated Managed Care System
Deborah A. Fisher, J. Grubber, S. Grambow, Marcus R. Johnson +2 more
20123 citations Open access
Semantic Scholar
Fecal occult blood testing completion in a VA population: Low and strongly related to race
Deborah A. Fisher, Marcus R. Johnson, N. Shaheen
20073 citations
Semantic Scholar
Creation of a Structured Performance-Based Assessment Tool in a Clinical Research Center Setting.
Marcus R. Johnson, A. Bullard
20200 citations
Semantic Scholar
Utilization of a Paired Comparison Analysis Framework to Inform Decision-Making and the Prioritization of Projects and Initiatives in a Highly Matrixed Clinical Research Program.
Marcus R. Johnson, Melissa Middleton, Mackenzie Brown, T. Burke +1 more
20190 citations
Semantic Scholar
96 - High Risk Adenomas at Baseline Colonoscopy Associated with Future Advanced Adenoma Despite an Intervening Negative Colonoscopy
B. Sullivan, Thomas S Redding, E. Hauser, Z. Gellad +17 more
20180 citations
Semantic Scholar
Network analysis of chronological relationships of comorbidities in veterans from a prospective screening colonoscopy trial
Julian C. Hong, E. Hauser, Thomas S Redding, K. Sims +14 more
2018American Medical Informatics Association Annual Symposium0 citations
Semantic Scholar
Mo1103 Physician and Patient Factors As Potential Predictors of Non-Adherence to Colonoscopy Guidelines in an Integrated Managed Care System
Marcus R. Johnson, J. Grubber, S. Grambow, M. Maciejewski +2 more
20130 citations Open access
Semantic Scholar
Sa1137 Adequacy of Bowel Preparation and Documentation of Bowel Preparation Quality at Index Colonoscopy in the VA Health Care System
Tilak Shah, J. Grubber, S. Grambow, Marcus R. Johnson +3 more
20120 citations
Semantic Scholar

Frequent co-authors

Invite them to SciRah by sharing their profile.

D. Provenzale×8
Invite
D. Provenzale — researcher profile on SciRah
Deborah A. Fisher×7
Invite
Deborah A. Fisher — researcher profile on SciRah
J. Grubber×5
Invite
J. Grubber — researcher profile on SciRah
S. Grambow×4
Invite
S. Grambow — researcher profile on SciRah

×4

Invite

M. Maciejewski — researcher profile on SciRah

Invite

D. Beck — researcher profile on SciRah

Invite

A. Asghar — researcher profile on SciRah

Grant D Huang×4

Invite

Grant D Huang — researcher profile on SciRah

Invite

K. Sims — researcher profile on SciRah

C. D. Williams×3

Invite

C. D. Williams — researcher profile on SciRah

Debra L. Condon×3

Invite

Debra L. Condon — researcher profile on SciRah

T. Kenworthy-Heinige×3

Invite

T. Kenworthy-Heinige — researcher profile on SciRah