Authors: Michael F. McGee, MD; Jeffrey Marks, MD; Amitabh Chak, MD; Raymond P. Onders, MD; Steve J. Schomisch, BS; Conor P. Delany, MD, PhD
Keyword(s): balloon dilator, endoscope, gastroscope, NOTES, pediatric anoscope, proctotomy, retroflexion, transgastric, transrectal