About the Authors

Susan J. Little

slittle@ucsd.edu

Affiliation Department of Medicine, University of California, San Diego, La Jolla, California, United States of America

Sergei L. Kosakovsky Pond

Affiliation Department of Medicine, University of California, San Diego, La Jolla, California, United States of America

Christy M. Anderson

Affiliation Department of Medicine, University of California, San Diego, La Jolla, California, United States of America

Jason A. Young

Affiliation Department of Medicine, University of California, San Diego, La Jolla, California, United States of America

Joel O. Wertheim

Affiliation Department of Medicine, University of California, San Diego, La Jolla, California, United States of America

Sanjay R. Mehta

Affiliation Department of Medicine, University of California, San Diego, La Jolla, California, United States of America

Susanne May

Affiliation Department of Biostatistics, University of Washington, Seattle, Washington, United States of America

Davey M. Smith

Affiliations Department of Medicine, University of California, San Diego, La Jolla, California, United States of America, Veterans Affairs San Diego Healthcare System, San Diego, California, United States of America

Competing Interests

Dr. Pond served as a consultant for Monogram Biosciences and Genprobe. Dr. Smith reported receiving grant funding from ViiV Healthcare and having served as a consultant for Genprobe and Testing Talent Services. No other competing interest disclosures were reported. 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: SJL SLKP DMS. Performed the experiments: SJL DMS. Analyzed the data: SLKP SM JOW JAY CMA SJL DMS. Contributed reagents/materials/analysis tools: CMA JAY JOW. Wrote the paper: SJL SLKP SRM DMS.