High immunoexpression of progesterone-induced blocking factor (PIBF) in endometrial cancer Journal title: European Journal of Gynaecological Oncology Authors: E. Sahin, Y. Madendag, M.E. Sahin, I.C. Madendag, A.T. Tayyar, F. Senel, H. Karaman, G. Acmaz Subject(s):