Prevention of preterm birth.
Sepkowitz
S
S
D005193:Family Planning Services; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008427:Maternal Health Services; D007752:Obstetric Labor, Premature / Q000453:epidemiology / Q000517:prevention & control*; D011247:Pregnancy; D011272:Pregnancy, Multiple / Q000706:statistics & numerical data