About the Authors Linda M. Frazier, M.D., M.P.H., is board certified in occupational and environmental medicine and in internal medicine. She has been on the faculty at Duke University for ten years and is currently Associate Professor at the University of Kansas School of Medicine. Dr. Frazier directed the educational outreach program, EPOCH-Envi (Educating Physicians in Occupational Health and the Environment), designed to teach OEM concepts to primary care physicians. Marvin L. Hage, M.D., is an Associate Clinical Professor in the Division of Maternal-Fetal Medicine at Duke University Medical Center. Certified in obstetrics and gynecology, Dr. Hage is a member of the American Medical Association and the American Board of Obstetrics and Gynecology.