1. EMD Serono Research & Development Institute, Inc. (a Business of Merck KGaA, Darmstadt, Germany), Billerica, Massachusetts 01821, United States
2. Global Health Institute of Merck, Ares Trading S.A., a subsidiary of Merck KGaA (Darmstadt, Germany), 1261 Eysins, Switzerland
3. Merck Healthcare KGaA, 64293 Darmstadt, Germany