Comment on

• The association between hospital volume and survival after acute myocardial infarction in elderly patients.

  Thiemann DR, Coresh J, Oetgen WJ, Powe NR. Thiemann DR, et al. N Engl J Med. 1999 May 27;340(21):1640-8. doi: 10.1056/NEJM199905273402106. N Engl J Med. 1999. PMID: 10341277
• The relation between volume and outcome in health care.

  Hannan EL. Hannan EL. N Engl J Med. 1999 May 27;340(21):1677-9. doi: 10.1056/NEJM199905273402112. N Engl J Med. 1999. PMID: 10341283 No abstract available.