1. Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China
2. Health Care and Physical Examination Center, The First Affliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
3. Department of Plastic Surgery, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong 510080, P.R. China