About the Authors

Amy K. Kasahara

Affiliation Program in Public Health, University of California Irvine, Irvine, California, United States of America

Ravinder J. Singh

Affiliation Division of Clinical Biochemistry and Immunology, Mayo Clinic, Rochester, Minnesota, United States of America

Andrew Noymer


Affiliation Department of Population Health and Disease Prevention, University of California Irvine, Irvine, California,United States of America

Competing Interests

The corresponding author of the paper, Andrew Noymer, is a PLOS ONE Editorial Board member. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: AN RS. Performed the experiments: RS AN AK. Analyzed the data: AN RS AK. Contributed reagents/materials/analysis tools: RS. Wrote the paper: AN AK.