About the Authors

Anne F. Rositch

arositch@epi.umaryland.edu

Affiliation Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, Maryland, United States of America

Michelle I. Silver

Affiliation Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Patti E. Gravitt

Affiliation Department of Pathology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the first draft of the manuscript: AFR MIS PEG. Contributed to the writing of the manuscript: AFR MIS PEG. ICMJE criteria for authorship read and met: AFR MIS PEG. Agree with manuscript results and conclusions: AFR MIS PEG.