Teaching hospital status and operative mortality in the United States: tipping point in the volume-outcome relationship following colon resections?
Hayanga AJ, Mukherjee D, Chang D, Kaiser H, Lee T, Gearhart S, Ahuja N, Freischlag J. Teaching hospital status and operative mortality in the United States: tipping point in the volume-outcome relationship following colon resections? Arch Surg. 2010 Apr; 145(4):346-50.