title: Some aspects of sleep research in surgical stress.
mesh_terms: D004569:Electroencephalography; D004585:Electrooculography; D006801:Humans; D008297:Male; D010149:Postoperative Pain; D012106:Research; D007319:Sleep Initiation and Maintenance Disorders / Q000209:etiology; D012894:Sleep Stages; D013514:Surgical Procedures, Operative