10.1016/S0016-5107(90)70999-6
Schapiro, MelvinVolume:
36
Language:
english
Journal:
Gastrointestinal Endoscopy
DOI:
10.1016/S0016-5107(90)70999-6
Date:
March, 1990
File:
PDF, 1.67 MB
english, 1990