4) Buzby GP, Mullen JL, Matthews DC et al: Prognostic nutitional index in gastrointestinal surgery. Am J Surg 139: 160-167, 1980
5) Samnels LT: Factors affecting the metabolism and distribution of cortisol as measured by levels of 17-hydrocorticoid in blood. Cancer 10: 746-750, 1957