[Follow-up of mothers and infants in threatened abortion and premature birth observed at our department].
D000033:Abortion, Threatened / Q000453:epidemiology; D000367:Age Factors; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D007564:Japan; D007752:Obstetric Labor, Premature / Q000188:drug therapy / Q000453:epidemiology; D009790:Occupations; D011247:Pregnancy; D011379:Prognosis