Graduate Institute of Acupuncture Science, China Medical University, Taichung 404, Taiwan. Department of Acupuncture, China Medical University Hospital, Taichung 404, Taiwan. Division of Plastic and Reconstructive Surgery, Department of Surgery, China Medical University Hospital, Taichung 404, Taiwan. Department of Public Health, China Medical University, Taichung 404, Taiwan. Division of Thoracic Surgery, Department of Surgery, China Medical University Hospital, Taichung 404, Taiwan. Surgical Intensive Care Unit, China Medical University Hospital, Taichung 404, Taiwan. Chinese Medicine Research Center, China Medical University, Taichung 404, Taiwan.