About the Authors

Jenille Tan

Affiliation Department of Discovery Oncology, Genentech, South San Francisco, CA, United States of America

Scott E. Martin

martin.scott@gene.com

Affiliation Department of Discovery Oncology, Genentech, South San Francisco, CA, United States of America

Competing Interests

Genentech, Inc. funded this research through the employment (at the time of the study) of Jenille Tan and Scott E. Martin. There are no patents, products in development or marketed products to declare. This does not alter the authors’ adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.

Author Contributions

Conceptualization: SEM. Formal analysis: SEM. Investigation: JT. Methodology: SEM JT. Validation: SEM JT. Visualization: SEM JT. Writing – original draft: SEM JT. Writing – review & editing: SEM JT.