A randomized trial of peroral versus transnasal unsedated endoscopy using an ultrathin videoendoscope

The measurement of clinical pain intensity: a comparison of six methods

Mark P. Jensen, Paul Karoly, Sanford Braver · Pain · 1986 · 3.2K citations

Pain Therapy, Acute Pain, Pain Medicine +16

A comparative study of unsedated transnasal esophagogastroduodenoscopy and conventional EGD

Robert S. Dean, Kulwinder S. Dua, Benson T. Massey et al. · Gastrointestinal Endoscopy · 1996 · 140 citations

Esophagus, Gastroenterology, Surgery +5

Unsedated trans-nasal pharyngoesophagogastroduodenoscopy (T-EGD): Technique

Reza Shaker · Gastrointestinal Endoscopy · 1994 · 131 citations

Surgery, Esophageal Surgery, Trans-nasal Pharyngoesophagogastroduodenoscopy +1

Upper gastrointestinal endoscopy without sedation: a prospective study of 2000 examination

Hisham A. Al-Atrakchi · Gastrointestinal Endoscopy · 1989 · 98 citations

Endoscopy, Endoscopic Surgery, Gastroenterology +10

Unsedated Peroral Endoscopy With a Video Ultrathin Endoscope: Patient Acceptance, Tolerance, and Diagnostic Accuracy

Atif Zaman, Ronald Hapke, Geronimo Sahagun et al. · The American Journal of Gastroenterology · 1998 · 85 citations