Research in nursing practice. The problem of uncontrolled situational variables.
D001007:Anxiety; D004363:Drug Utilization; D005260:Female; D005334:Fever; D006801:Humans; D007902:Length of Stay; D009732:Nursing Care; D010146:Pain; D011300:Preoperative Care; D013514:Surgical Procedures, Operative; D013530:Surgical Wound Infection; D014839:Vomiting