Sexual activity during late pregnancy and risk of preterm delivery.
Goodin
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RC
D003075:Coitus; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000209:etiology* / Q000517:prevention & control; D009948:Orgasm / Q000502:physiology; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D018570:Risk Assessment; D014590:Uterine Contraction / Q000502:physiology*