1. Worldwide Research and Development Pfizer Inc Eastern Point Road Groton CT 06340 United States
2. Worldwide Research and Development Pfizer Inc 10770 Science Center Drive San Diego CA 92121 United States
3. HitGen Inc Building 6, No. 8 Huigu first East Road, Tianfu International Bio-Town, Shuangliu District Chengdu City Sichuan Province P. R. China
4. HitGen Pharmaceuticals Inc PO Box 88240 Houston TX 77288 United States