Eun Young Rha1, Dae Ho Kim1, Gyeol Yoo2. 1. Department of Plastic and Reconstructive Surgery, Yeouido St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea. 2. Department of Plastic and Reconstructive Surgery, Yeouido St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea. Electronic address: psyg@catholic.ac.kr.