title: [Prevention of abortion and premature delivery].
mesh_terms: D000022:Abortion, Spontaneous / Q000453:epidemiology / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007564:Japan; D007752:Obstetric Labor, Premature / Q000453:epidemiology / Q000517:prevention & control*; D011247:Pregnancy