EVALUATION OF CYCLE-TO-CYCLE VARIATION OF ENDOMETRIAL RESPONSIVENESS USING TRANSVAGINAL SONOGRAPHY IN WOMEN UNDERGOING ASSISTED REPRODUCTION ArticleO W.-S, So W.W.K., Ng E.H.Y., Ho P.C., Basir G.S.Ultrasound in Obstetrics & Gynecology. Том 19. 2002. С. 484-489
