Prev Med 2016 08 31;89:169-177. Epub 2016 May 31.
Department of Biomedical Science, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States; Department of Epidemiology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States; Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States.