TI - HALL CLASSIFICATION AS A PROGNOSTIC INDICATOR OF PRIMARY GASTROINTESTINAL LYMPHOMA AU - SADİ BENER, AU - AYDIN İŞİSAĞ, AU - MİNE HEKİMGİL, AU - RAGIP ORTAÇ, AU - SEMİN AYHAN, SO - Turk J Oncol 1997;12:040-048. DO -