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References

  • 1
    Centers for Medicare and Medicaid, Department of Health and Human Services . Medicare Program; Hospital Conditions of Participation: Requirements for Approval and Re-Approval of Transplant Centers To Perform Organ Transplants; Proposed Rule . In: Federal Register 42 CFR Parts 405, 482, and 488 ; February 4, 2005 : 61406182 .
  • 2
    Cox DR . Regression models and life tables (with discussion) . J Roy Stat Soc Series B 1972 : 197220 .
  • 3
    Kaplan EL , Meier P . Nonparametric estimation from incomplete observations . J Am Stat Assoc 1958 ; 53 : 457481 .
  • 4
    Dickinson DM , Ellison MD , Webb RL . Data sources and structure . Am J Transplant 2003 ; 3 ( Suppl 4 ): 1328 .
  • 5
    Dickinson DM , Bryant PC , Williams MC et al . Transplant data: Sources, collection, and caveats . Am J Transplant 2004 ; 4 ( Suppl 9 ): 1326 .