1. Pressure on the patient;Scales,1976
2. A decade of pressure sore research: 1977–1987;Crenshaw;J Rehab Res Dev,1989
3. Pressure management;Barbenel;Prosthetics and Orthotics Int,1991
4. Local pressure with ten types of patient/support systems;Redfern;Lancet,1973
5. Static and dynamic support systems — pressure differences on the body;Jeneid,1976