[ON THE PROBLEMS OF CAUSES OF PREMATURE BIRTHS].
D001787:Blood Group Incompatibility; D000013:Congenital Abnormalities; D005260:Female; D006176:Gynecology; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007744:Obstetric Labor Complications; D009790:Occupations; D011225:Pre-Eclampsia; D011247:Pregnancy; D011271:Pregnancy, Ectopic; D011272:Pregnancy, Multiple; D047928:Premature Birth; D012907:Smoking
ABNORMALITIES; BLOOD GROUP INCOMPATIBILITY; GYNECOLOGY; INFANT, NEWBORN; INFANT, PREMATURE; LABOR COMPLICATIONS; OCCUPATIONS; PREGNANCY; PREGNANCY TOXEMIAS; PREGNANCY, ECTOPIC; PREGNANCY, MULTIPLE; SMOKING