Comment on

• Association of hospital procedure volume and outcomes in patients with colon cancer at high risk for recurrence.

  Meyerhardt JA, Catalano PJ, Schrag D, Ayanian JZ, Haller DG, Mayer RJ, Macdonald JS, Benson AB 3rd, Fuchs CS. Meyerhardt JA, et al. Ann Intern Med. 2003 Oct 21;139(8):649-57. doi: 10.7326/0003-4819-139-8-200310210-00008. Ann Intern Med. 2003. PMID: 14568853 Clinical Trial.
• The effect of clustering of outcomes on the association of procedure volume and surgical outcomes.

  Panageas KS, Schrag D, Riedel E, Bach PB, Begg CB. Panageas KS, et al. Ann Intern Med. 2003 Oct 21;139(8):658-65. doi: 10.7326/0003-4819-139-8-200310210-00009. Ann Intern Med. 2003. PMID: 14568854