only 4 out of 18 women with an intact uterus had withdrawal bleeding during oestradiol valerate ( 2 mg/day ) treatment alone , but 14 out of 18 had regular bleeding during the two oestrogen-progestogen regimens ( oestradiol/medroxyprogesterone acetate and oestradiol/levonorgestrel ( lng ] , each of which prevented the development of endometrial hyperplasia .
C0042149
uterus
C0014173
the