[Vitamin K in obstetrics--effects of vitamin K1 on threatened abortion and premature labor].
D000033:Abortion, Threatened / Q000188:drug therapy*; D000328:Adult; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000188:drug therapy*; D011247:Pregnancy; D014364:Tryptophan / Q000652:urine; D014599:Uterus / Q000187:drug effects; D010837:Vitamin K 1 / Q000627:therapeutic use*
D010837:Vitamin K 1; D014364:Tryptophan