[Causes of the origin of an atypical preparatory period in labor].
D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans; D007745:Labor Onset; D007743:Labor, Obstetric; D007744:Obstetric Labor Complications / Q000652:urine; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011276:Pregnanediol / Q000652:urine*
D004967:Estrogens; D011276:Pregnanediol
O prichinakh proiskhozhdeniia atipicheskogo podgotovitel'nogo perioda k rodam