Functionality and Mortality in Obese Nursing Home Residents: An Example of ‘Risk Factor Paradox’? - Kaiser, Rebecca; Winning, Katrin; Uter, Wolfgang; Volkert, Dorothee; Lesser, Stephanie; Stehle, Peter; Kaiser, Matthias J.; Sieber, Cornel C.; Bauer, Juergen M. (Journal of the American Medical Directors Association, 2010)