Robert K. Adair, professor emeritus, Physics Department, Yale University, New Haven, Conn.; in-person interview July 11, 2009; e-mail and telephone conversations.
Robert D. Burk, professor, Departments of Pediatrics; Microbiology and Immunology; Obstetrics & Gynecology and Women’s Health; and Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, N.Y., March 25, 2014.
Daniel R. Doerge, research chemist, National Center for Toxicological Research, U.S. Food & Drug Administration, Jefferson, Ark.; e-mail interview January 2, 2015, and multiple e-mail exchanges.
Arthur P. Grollman, professor, Department of Pharmacology and Toxicology, Stony Brook University Medical School, Stony Brook, N.Y.; in-person interview May 5, 2012, and multiple e-mail exchanges.
Mark Schiffman, senior investigator, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Md.; telephone interview, March 25, 2014.
Richard M. Sharpe, group leader, MRC Center for Reproductive Health, University of Edinburgh, Scotland; multiple e-mail exchanges, August 21, 25, and 30, 2014.
Robert E. Tarone, biostatistics director, International Epidemiology Institute, Rockville, Md.; in-person interview December, 2014, and multiple e-mail exchanges.
Allen Wilcox, principal investigator, Reproductive Epidemiology Group, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, N.C.; October 20, 2014.
Mary S. Wolff, Professor, Departments of Preventive Medicine, Oncological Sciences, Mount Sinai Medical Center, New York, N.Y.; September 30, 2014.