Polyhydramnios: chronic versus acute.
D000208:Acute Disease; D000328:Adult; D001724:Birth Weight; D002908:Chronic Disease; D000013:Congenital Abnormalities; D003920:Diabetes Mellitus; D004899:Erythroblastosis, Fetal; D005260:Female; D005313:Fetal Death; D005865:Gestational Age; D006801:Humans; D006831:Polyhydramnios / Q000175:diagnosis; D011247:Pregnancy; D014427:Twins