Jean Sutton and optimal fetal positioning.
Nolan
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D005260:Female; D006801:Humans; D007746:Labor Presentation; D009321:Natural Childbirth / Q000379:methods / Q000451:nursing; D009721:Nurse Midwives; D011187:Posture; D011247:Pregnancy; D014710:Version, Fetal / Q000379:methods