RecruitingPhase 4Clinical trialA Multicenter, Prospective, Clinical Trial Evaluating a Single Layer Amniotic Membrane and Standard of Care Versus Matched Controls in the Management of Nonhealing Pressure UlcersA multicenter, prospective, clinical trial evaluating a single-layer amniotic membrane (XPURT) and standard of care versus matched controls in the management of nonhealing pressure ulcers.