Aug. 2, 2004 (San Diego) — Occiput posterior presentation adds markedly to the risk of grade 3 or 4 anal sphincter laceration within the setting of forceps-assisted delivery, according to researchers ...
A thirty-three-year-old gravida III, para II, experienced a normal pregnancy, uneventful prenatal course and a normal six-hour labor. Under nitrous oxide, oxygen and ether anesthesia, after manual ...
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