Robert E. Petras

Reduced Paneth cell α-defensins in ileal Crohn's disease

Jan Wehkamp, Nita H. Salzman, Edith Porter et al. · Proceedings of the National Academy of Sciences · 2005 · 957 citations · Full text

The Diagnosis of Low-Grade Dysplasia in Barrett's Esophagus and Its Implications for Disease Progression

Marek Skacel, Robert E. Petras, Terry L. Gramlich et al. · The American Journal of Gastroenterology · 2000 · 356 citations

Gastrointestinal tissue diagnosis by laser-induced fluorescence spectroscopy at endoscopy

Robert M. Cothren, Rebecca Richards‐Kortum, Michael Sivak et al. · Gastrointestinal Endoscopy · 1990 · 293 citations

Laser-induced Fluorescence Spectroscopy, Gastroenterology, Pathology +6

Methylene blue selectively stains intestinal metaplasia in Barrett's esophagus

Marcia Irene Canto, Sebouh Setrakian, Robert E. Petras et al. · Gastrointestinal Endoscopy · 1996 · 277 citations

Esophagus, Gastroenterology, Colorectal Cancer +5

Methylene blue–directed biopsies improve detection of intestinal metaplasia and dysplasia in Barrett's esophagus

Marcia Irene Canto, Sebouh Setrakian, Joseph Willis et al. · Gastrointestinal Endoscopy · 2000 · 277 citations

Esophagus, Esophageal Cancer, Medicine +9