Considerations on the etiology of postponed labour.
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008875:Middle Aged; D010920:Placenta / Q000502:physiology / Q000503:physiopathology; D011247:Pregnancy; D011273:Pregnancy, Prolonged