Weil E, Wachterman M, McCarthy EP, Davis RB, O'Day B, Iezzoni LI, et al. Obesity among adults with disabling conditions. JAMA. 2002;288(10):1265–1268. 

Altman BM, Bernstein A. National Center for Health Statistics, editor.: DHHS. 2008. Disability and health in the U.S., 2001–2005.