1. Ringpu (Tianjin) Bio-Pharmacy Co., Ltd.; No. 6, Liujing Road 300300 Tianjin China
2. Tianjin Institute of Pharmaceutical Research Ltd.; No. 308, Huixin Road, Binhai New Area 300300 Tianjin China
3. Johns Hopkins University School of Medicine; 3400 N. Charles Street 21201 Baltimore, MD USA