論文（英文）
Evaluation of a new pressure ulcer preventive dressing containing ceramide 2 with low frictional outer layer.
Nakagami G, Sanada H, Konya C, Kitagawa A, Tadaka E, and Matsuyama Y. Evaluation of a new pressure ulcer preventive dressing containing ceramide 2 with low frictional outer layer. Journal of Advanced Nursing 2007; 59(5): 520-529.