Vlahov, PhD, David, Micaela H. Coady, MS, Sandro Galea, MD, DrPH, Danielle C. Ompad, PhD, and Jeremiah A. Barondess, MD. 2007. “Pandemic Preparedness and Hard to Reach Populations”. American Journal of Disaster Medicine 2 (6):281-83. https://doi.org/10.5055/ajdm.2007.0037.