1. Department of Dermatology, The First Hospital of Hohhot , Hohhot 010030, China
2. Department of Allergy, The First Hospital of Hohhot , Hohhot 010030, China
3. Department of Dermatology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health , Beijing 100045, China
4. Department of Dermatology, The First Hospital of Hohhot , No. 150 Southern 2nd Ring Road, Yuquan District , Hohhot, Inner Mongolia 010030, China
5. Department of Allergy, The First Hospital of Hohhot No. 150 Southern 2nd Ring Road, Yuquan District , Hohhot, Inner Mongolia 010030, China
6. Department of Dermatology, International Mongolian Hospital of Inner Mongolia , No. 83 University East Road, Saihan District , Hohhot, Inner Mongolia 010020, China