9Barrois B, Allaet F A. A survey of pressure sore prevalence in hospitals in the greater Paris region[J]. J Wound Care, 1995,4 (5):234-236.
10Bergstrom N, Demuth P J ,Braden B J. A clinical trial of the Braden Scale for predicting pressure sore risk[J]. Nurs Clin North Am,1987,22(2) :417-428.