6Baynham SA, Kohlman P, Katner HP. Treating stage IV pressure ulcers with negative pressure therapy:a case report. Ostomy Wound Manage. 1999,45 (4) : 28-32,34-35.
7Philbeck TE,Whittington KT, Millsap MH, et al. The clinical and cost effectiveness of externally applied negative pressure wound therapy in the treatment of wounds in home healthcare Medicare patients. Ostomy Wound Manage, 1999,45 (11) : 41- 50.