[Morphine and premature labor].
D005260:Female; D006801:Humans; D007234:Infant, Premature; D007743:Labor, Obstetric; D009020:Morphine; D007752:Obstetric Labor, Premature; D011247:Pregnancy; D014937:Work
D009020:Morphine
INFANT, PREMATURE; LABOR; MORPHINE