1. Institute for Bioscience and Biotechnology Research, National Institute of Standards and Technology, 9600 Gudelsky Drive, Rockville, Maryland 20850, United States
2. Center for Biologics Evaluation, Biologics and Genetic Therapies Directorate, Health Canada, 251 Sir Frederick Banting Driveway, Tunney’s Pasture, A/K 2201E, Ottawa, Ontario KIA 0K9, Canada
3. Higher Order Structure Group, Amgen, Incorporated, One Amgen Center Drive, Thousand Oaks, California 91320, United States