1 Dermatology, Plastic and Cosmetic Surgery Center, First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, Guangdong, China.
2 Department of Dermatology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong, China.
3 Dermatology, Plastic and Cosmetic Surgery Center, First Dongguan Affiliated Hospital of Guangdong Medical University, Dongguan, Guangdong, China ymfan1963@163.com.