Scientists & Staff | National Institute of Environmental Health Sciences Skip Navigation Scientists & Staff Close the left navigation Add Environmental Epigenomics & Disease Group Douglas A. Bell, Ph.D. (Retired) Special Volunteer Tel 984-287-3862 [email protected] Michelle R. Campbell, M.B. Health Specialist Tel 984-287-3972 [email protected] Suzanne N. Martos, Ph.D. Fellow - IRTA Tel 984-287-3973 [email protected] Back to Top Last Reviewed: April 10, 2026