8[5]Gravello L et al,Acta Obstet Gynecol scand,1996,75(6):563 -566
9[6]Spiewankiewicz B,Stelmachow J,sawickiw,et al.Hysterscopy with selective endometrial sampling after unsuccessful dilatation and curettage in dignosis of symptomatic endometrial cancer and endometrial hyperplasias.EUR J Gyneol Oncol,1995,16 (1)
10[9]OConnell LP,fries MH,Zeringue E,et al.Triage of abnormal posemenopausal bleeding:A comparison of endometrial biopsy and transvaginal sonohysterography versus fractionzl curettage with hysteroscopy.Am J Obstet Gynecol,1998,178:956-961
