1. Division of Therapeutic Proteins, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Bethesda, MD, United States
2. Biomedical Engineering and Physical Science Shared Resource, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD
3. Confocal Microscopy Core Facility, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD