Comment on

• The association between local diagnostic testing intensity and invasive cardiac procedures.

  Wennberg DE, Kellett MA, Dickens JD, Malenka DJ, Keilson LM, Keller RB. Wennberg DE, et al. JAMA. 1996 Apr 17;275(15):1161-4. JAMA. 1996. PMID: 8609682
• The impact of diagnostic testing on therapeutic interventions.

  Verrilli D, Welch HG. Verrilli D, et al. JAMA. 1996 Apr 17;275(15):1189-91. JAMA. 1996. PMID: 8609687
• Use of diagnostic tests and therapeutic procedures in a changing health care environment.

  Epstein AM. Epstein AM. JAMA. 1996 Apr 17;275(15):1197-8. JAMA. 1996. PMID: 8609689 No abstract available.