About the Authors

Vyjeyanthi S. Periyakoil

periyakoil@stanford.edu

Affiliations Stanford University School of Medicine, Palo Alto, CA, 94304, United States of America, VA Palo Alto Health Care System, Palo Alto, CA, 94304, United States of America

Eric Neri

Affiliation Stanford University School of Medicine, Palo Alto, CA, 94304, United States of America

Helena Kraemer

Affiliation Stanford University School of Medicine, Palo Alto, CA, 94304, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: VSP HK. Performed the experiments: VSP. Analyzed the data: VSP EN HK. Contributed reagents/materials/analysis tools: VSP EN HK. Wrote the paper: HK EN.