Efe Cumali, Ozaslan Ersan, Purnak Tugrul, Ozturk Ramazan
Department of Internal Medicine, Ankara Numune Education and Research Hospital, Yazgan sokak 21/12 Cebeci, Ankara, Turkey.
Eur J Gastroenterol Hepatol. 2010 Sep;22(9):1149-50. doi: 10.1097/MEG.0b013e3283379768.