1. Abildgaard A.U. Daugaard K. Pressure sores. A study on prevalence. Ugeskr Laeger 1979; 141:3147-3151.
2. Abruzzese R.S. Early assessment and prevention of pressure sores. In B. Y. Lee (Ed.) Chronic ulcers of the skin. New York: McGraw-Hill 1990 pp. 1-19.
3. Alunan R.M. Pressure ulcers among bedridden hospitalized elderly. Unpublished raw data 1991.
4. American Nurses' Association. Neuroscience nursing practice: Process and outcome criteria for selected diagnoses. Kansas City MO: Author 1985.
5. Andberg M.M. Rudolph A. Anderson XP. Improving skin care through patient and family training. Topics in Clinical Nursing 1983; 5:45-54.