title: Pentazocine, pethidine and placebo for postoperative pain. An assessment by means of ventilatory measurements and subjective evaluation.
mesh_terms: D000005:Abdomen / Q000601:surgery; D000328:Adult; D000368:Aged; D000698:Analgesia; D001290:Attitude; D005260:Female; D006801:Humans; D008297:Male; D008614:Meperidine / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D008875:Middle Aged; D009325:Nausea / Q000139:chemically induced; D010146:Pain / Q000188:drug therapy*; D010423:Pentazocine / Q000008:administration & dosage / Q000627:therapeutic use*; D010919:Placebos; D011182:Postoperative Care; D012119:Respiration / Q000187:drug effects*; D013997:Time Factors; D014797:Vital Capacity
chemical_list: D010919:Placebos; D008614:Meperidine; D010423:Pentazocine