1. Department of Plastic Surgery, Southern Medical University, Guangzhou, Guangdong, China.
2. Department of Ophthalmology, Joint Shantou International Eye Center of Shantou University and Chinese University of Hong Kong, Shantou, Guangdong, China.
3. Department of Plastic Surgery, General Hospital of Guangzhou Military Command of the PLA, Guangzhou, Guangdong, China.