Duman Ali Erkan, Ersoy Osman, Abbasoglu Osman, Harmanci Ozgur, Aydinli Musa, Bayraktar Yusuf, Balkanci Ferhun
Department of Internal Medicine, Hacettepe University, Ankara, Turkey.
Indian J Gastroenterol. 2011 Dec;30(6):285. doi: 10.1007/s12664-011-0116-6.