1. Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
2. Merck & Co., Inc., Boston, Massachusetts 02115, United States
3. Promega Corporation, Madison, Wisconsin 53711, United States
4. MSD International, Singapore 138665, Singapore
5. Agency for Science, Technology and Research (A*STAR) Singapore 138665, Singapore
6. Promega Biosciences Incorporated, San Luis Obispo, California 93401, United States