Vlahov, PhD, D., M. H. Coady, MS, S. Galea, MD, DrPH, D. C. Ompad, PhD, and J. A. Barondess, MD. “Pandemic Preparedness and Hard to Reach Populations”. American Journal of Disaster Medicine, vol. 2, no. 6, Nov. 2007, pp. 281-3, doi:10.5055/ajdm.2007.0037.