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