... In:Walker WA, Durie PR,Hamilton JR,Walker-Smith JA,WatkinsJB (eds), Pediatric GastrointestinalDisease,2nd edn.St.Louis, MO: Mosby; 1996:1 533 –41.Fox VL. Pediatric endoscopy. Gastrointest Endosc Clin ... 1999;1 03: E30.Hoppin A.Other neoplasms. In:Walker WA, Durie PB,Hamilton JR,Walker-Smith JA,Watkins JB (eds), Pediatric Gastrointestinal Disease :Pathophysiology, Diagnosis, and Management, 3rd ... chromoendoscopy isto help increase the diagnostic yield of endoscopic biopsies. Pos-itive staining with methylene blue could also be used to identify Practical Pediatric Gastrointestinal Endoscopy...