Multidrug resistance of isolated microorganisms in occluded bile duct stents* - DEMİRBAĞ, Ali E. and KARADEMİR, Aslı and PARLAK, Erkan and ŞEN, Süha and KARAHAN, Mehmet and KAYAALP, Cüneyt and ŞAHİN, Burhan (Turkish Journal of Gastroenterology, 2007)