Obesity reduces the risk of pressure ulcers in elderly hospitalized patients. - Compher C; Kinosian BP; Ratcliffe SJ; Baumgarten M; Ferrucci L; Compher, Charlene; Kinosian, Bruce P; Ratcliffe, Sarah J; Baumgarten, Mona (Journals of Gerontology Series A: Biological Sciences & Medical Sciences, 2007)