About the Authors

Sandra L. Ross

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing

Affiliation Department of Oncology Research, Amgen Inc., Thousand Oaks, California, United States of America

Marika Sherman

Roles Investigation, Methodology, Visualization, Writing – review & editing

Current address: Department of Translational Sciences, Kite Pharma, Inc., Santa Monica, California, United States of America

Affiliation Department of Oncology Research, Amgen Inc., Thousand Oaks, California, United States of America

Patricia L. McElroy

Roles Investigation, Methodology, Writing – review & editing

Affiliation Department of Oncology Research, Amgen Inc., Thousand Oaks, California, United States of America

Julie A. Lofgren

Roles Investigation, Methodology, Writing – review & editing

Affiliation Department of Oncology Research, Amgen Inc., Thousand Oaks, California, United States of America

Gordon Moody

Roles Conceptualization, Methodology, Supervision, Writing – review & editing

Current address: Department of Oncology, Medimmune, Gaithersburg, Maryland, United States of America

Affiliation Department of Oncology Research, Amgen Inc., Thousand Oaks, California, United States of America

Patrick A. Baeuerle

Roles Formal analysis, Writing – original draft, Writing – review & editing

Current address: MPM Capital, Cambridge, Massachusetts, United States of America

Affiliation Department of Amgen Research Munich, Amgen Inc., Munich, Germany

Angela Coxon

Roles Supervision, Writing – review & editing

Affiliation Department of Oncology Research, Amgen Inc., Thousand Oaks, California, United States of America

Tara Arvedson

Roles Conceptualization, Formal analysis, Methodology, Supervision, Writing – original draft, Writing – review & editing

taraa@amgen.com

Affiliation Department of Oncology Research, Amgen Inc., Thousand Oaks, California, United States of America

Competing Interests

We have the following interests. All authors were employed by Amgen Inc. at the time of the study, with equity ownership. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.