Relationship Ki-67 and BCL-2 in gastrointestinal lymphomas - PEŞDERELİ, Hatice E. and GÜLKESEN, Kemal H. and ERDOĞAN, Gülgün and GELEN, Mustafa T. and KARPUZOĞLU, Gülten and SÜLEYMANLAR, İnci and SARGIN, Canan F. (Turkish Journal of Gastroenterology, 2000)