1. Dermatovenerological Department The Second Hospital of HeBei Medical University Shijiazhuang HeBei Province China
2. Dermatovenerological Department University of Maryland School of Medicine, Baltimore MD USA
3. Dermatovenerological Department Central Hospital Zhuozhou HeBei Province China
4. Dermatovenerological Department Shijiazhuang Fifth Hospital Shijiazhuang HeBei Province China
5. Dermatovenerological Department Affiliated Hospital of Hebei University Baoding HeBei Province China