@incollection{Al-Khyatt13,
author = {Waleed Al-Khyatt and Farhan Rashid and S.Y. Iftikhar},
title = {Diagnostic Value of Upper Gastrointestinal Endoscopy Prior to Cholecystectomy},
booktitle = {Endoscopy of GI Tract},
publisher = {IntechOpen},
address = {Rijeka},
year = {2013},
editor = {Somchai Amornyotin},
chapter = {6},
doi = {10.5772/52520},
url = {https://doi.org/10.5772/52520}
}