1 Department of Dermatology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
2 Shunyi Women and Children's Hospital of Beijing Children's Hospital, Beijing 101300, China.
3 Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.
4 Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China.