title: Maternal hypoxaemia after pethidine.
mesh_terms: D001034:Apgar Score; D005260:Female; D005318:Fetal Heart / Q000187:drug effects; D005865:Gestational Age; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D000860:Hypoxia / Q000139:chemically induced*; D007743:Labor, Obstetric; D007977:Levallorphan / Q000009:adverse effects; D008614:Meperidine / Q000009:adverse effects*; D010100:Oxygen / Q000032:analysis; D010298:Parity; D010313:Partial Pressure; D011247:Pregnancy; D011312:Pressure; D012119:Respiration / Q000187:drug effects; D014599:Uterus / Q000187:drug effects
chemical_list: D007977:Levallorphan; D008614:Meperidine; D010100:Oxygen