Maklebust, J Pressure ulcer incidence in high-risk patients managed on a special three-layered air cushion. [electronic resource] - Decubitus Nov 1988 - 30-40 p. digital Publication Type: Clinical Trial; Journal Article ISSN: 0898-1655 Subjects--Topical Terms: AdultAgedBedsClinical Trials as TopicCohort StudiesFemaleHumansMaleMichiganMiddle AgedNursing DiagnosisPressure Ulcer--epidemiologyProspective StudiesRisk Factors