||Krapfl LA, Gray M：Does regular repositioning
prevent pressure ulcers?. J Wound Ostomy Continence
Nurs, 35（6）：571-577, 2008.（レベルI）
||National Pressure Ulcer and Advisory Panel and
European Pressure Ulcer Advisory Panel：Prevention
and treatment of pressure ulcers, clinical practice
guideline, National Pressure Ulcer Advisory Panel,
Washington DC, 2009.
||Wound, Ostmy and Continence Nurses Society：
Guideline for prevention and management of pressure
ulcers. WOCN clinical practice guidelines no. 2
Glenview, IL, 2003.