1 Plastic Surgery Hospital (Institute), Chinese Academy of Medical Sciences, Peking Union Medical College, No. 33 Badachu Road, Shijingshan District, Beijing, 100144, People's Republic of China.
2 Plastic Surgery Hospital (Institute), Chinese Academy of Medical Sciences, Peking Union Medical College, No. 33 Badachu Road, Shijingshan District, Beijing, 100144, People's Republic of China. drlifc@sohu.com.