1. Drug Substance Technologies, Process Development, Amgen, Inc., Thousand Oaks, California 91320, United States
2. Drug Substance Technologies, Process Development, Amgen, Inc., Cambridge, Massachusetts 02142, United States
3. Attribute Sciences, Process Development, Amgen, Inc., Thousand Oaks, California 91320, United States
4. Snapdragon Chemistry Inc., Waltham, Massachusetts 02451, United States
5. F.I.S.-Fabbrica Italiana Sintetici S.p.A., Viale Milano 26, 36075 Montecchio Maggiore, Vincenza