1. Seattle Genetics, Inc. 21823 30th Drive SE, Bothell, Washington 98021, United States
2. Groton Laboratories, Pfizer Worldwide Research and Development, 445 Eastern Point Road, Groton, Connecticut 06340, United States
3. Pharmacodia (Beijing) Co., Ltd., Beijing, 100085, China
4. BioDuro, 11011 Torreyana Road, San Diego, California 92121, United States