1. Mass Spectrometry & Biophysics, Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
2. Biologics Process R&D, Downstream Purification Development and Engineering, Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, New Jersey 07033, United States
3. Process Chemistry Division, Bio-Rad Laboratories, Hercules, California 94547, United States