title: Influence of meperidine on fetal movements and heart rate beat-to-beat variability in the active phase of labor.
authors: R H
authors: RH
authors: Petrie
mesh_terms: D005260:Female; D005324:Fetal Movement / Q000187:drug effects*; D006340:Heart Rate, Fetal / Q000187:drug effects*; D006801:Humans; D007743:Labor, Obstetric / Q000187:drug effects*; D008614:Meperidine / Q000494:pharmacology*; D011247:Pregnancy
chemical_list: D008614:Meperidine