1Deflooret al.The effect of various combinations of turning and pressure reducing devices on the incidence of pressure ulcers[J].International Journal of Nursing Studies42,2005,37-46.
2.中国化工产品大全[M](上卷)第三版.化学工业出版社,2005.962-964.
3Z.Wirpsza.Polyurethanes chemistry Technology and Applications[M].Ellis Horwood,1993.565-575.
4G.Oertel.Polyurethane Handbook[M].Hauser Publisher,Munich Vienna New York,1994.23-26.
