title: Correlation of biorhythm cycle phases with incidence of postoperative infection and requirement for postoperative analgesia.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000700:Analgesics / Q000627:therapeutic use; D002763:Cholecystectomy; D005260:Female; D006801:Humans; D007239:Infections / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D010149:Postoperative Pain / Q000188:drug therapy / Q000453:epidemiology*; D010507:Periodicity; D011183:Postoperative Complications / Q000453:epidemiology*; D012189:Retrospective Studies
chemical_list: D000700:Analgesics