8Marten Butcher. NICE Clinical Guidelines: Pressure ulcer risk assessment and prevention-a review[M]. Wood wide wounds,UK, July 2001. 996 997.
9Pang SM, Wong TK. Predicting pressure sore risk with the Norton, Braden and Wateelow scales in a Hong Kong rehabilitation hospital [J]. Nur Res,1998,47(3):147.
10Anthony D , Clark M; Darllender J. An optimization of the watelow score using regression and artificial neural net works[J].Cline Rehabil,2004,14(1): 102.