Affiliation: | 1. 1‐650‐467‐32841‐650‐225‐2006;2. Early Stage Cell Culture, Genentech, 1 DNA Way, South San Francisco, California;3. Protein Analytical Chemistry, Genentech, 1 DNA Way, South San Francisco, California;4. Analytical Operations, Genentech, 1 DNA Way, South San Francisco, California |