Diagnostic value of high molecular weight alkaline phosphatase in detection of liver metastasis in gastrointestinal system malignancies - ERSOY, Osman; ÜNLÜ ERSOY, Reyhan; BULUT, Nilüfer; YÖRÜK, Özlem; DEMİRCİ, Hüseyin and YILDIRIM, Safa (Turkish Journal of Gastroenterology, 2001)