4) Fleischmann E, Lenhardt R, Kurz A, et al: Outcomes Research Group. Nitrous oxide and risk of surgical wound infection: a randomised trial, Lancet, 2005; 366: 1101-1107.
5) Olerud JE: Models for diabetic wound healing and healing into percutaneous devices, J Biomater Sci Polym Ed, 2008; 19: 1007-1020.