John F. Johanson

Colonoscopic Withdrawal Times and Adenoma Detection during Screening Colonoscopy

Robert L. Barclay, Joseph J. Vicari, Andrea Doughty et al. · New England Journal of Medicine · 2006 · 1.3K citations · Full text

Medicine, Clinical Sciences, Oncology +15

Guideline for the management of ingested foreign bodies

Glenn M. Eisen, Todd H. Baron, Jason A. Dominitz et al. · Gastrointestinal Endoscopy · 2002 · 663 citations

Medicine, Surgery, Gastroenterology +9

The prevalence of hemorrhoids and chronic constipation

John F. Johanson, Amnon Sonnenberg · Gastroenterology · 1990 · 638 citations

Medicine, Obstetrics, Gastroenterology +7

Chronic constipation: a survey of the patient perspective

John F. Johanson, Jeffrey Kralstein · Alimentary Pharmacology & Therapeutics · 2007 · 619 citations · Full text

Medicine, Clinical Sciences, Chronic Illness Self-management +12

Epidemiology of fecal incontinence: the silent affliction.

John F. Johanson, Jerry Lafferty · PubMed · 1996 · 528 citations

Medicine, Clinical Sciences, Internal Medicine +9