About the Authors

Marla J. Keller

Affiliations Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, United States of America, Department of Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, New York, United States of America

Pedro M. M. Mesquita

Affiliation Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, United States of America

N. Merna Torres

Affiliation Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, United States of America

Sylvia Cho

Affiliation Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, United States of America

Gail Shust

Affiliation Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, United States of America

Rebecca P. Madan

Affiliation Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, United States of America

Hillel W. Cohen

Affiliation Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, New York, United States of America

Julie Petrie

Affiliation Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, United States of America

Tara Ford

Affiliation Department of Medicine, Albert Einstein College of Medicine, Bronx, New York, United States of America

Lydia Soto-Torres

Affiliation Division of AIDS, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, Maryland, United States of America

Albert T. Profy

Affiliation Endo Pharmaceuticals, Chadds Ford, Pennsylvania, United States of America

Betsy C. Herold

betsy.herold@einstein.yu.edu

Affiliations Department of Obstetrics and Gynecology and Women's Health, Albert Einstein College of Medicine, Bronx, New York, United States of America, Department of Pediatrics, Albert Einstein College of Medicine, Bronx, New York, United States of America, Department of and Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, United States of America

Competing Interests

Al Profy is a full-time employee of Endo Pharmaceuticals, formerly Indevus Pharmaceuticals, the developers of PRO 2000 gel. This does not alter in any way the authors' adherence to all the PLoS ONE policies on sharing data and materials, as detailed online in the guide for authors. No other authors have any competing interests to disclose.

Author Contributions

Conceived and designed the experiments: MJK PMMM LST AP BCH. Performed the experiments: PMMM MT SC GS RM JP TF. Analyzed the data: MJK PMMM MT SC GS RM HC BCH. Contributed reagents/materials/analysis tools: RM AP. Wrote the paper: MJK HC BCH.