Anesthesiology · 2002 · 148 citations · 24 references
When anesthesiology board certification is very common, as in midcareer practitioners, the lack of board certification is associated with worse outcomes. However, the poor outcomes associated with noncertified providers may be a result of the hospitals at which they practice and not necessarily their manner of practice.
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Primary Care Outcomes in Patients Treated by Nurse Practitioners or Physicians
Mary O. Mundinger, Robert L Kane, Elizabeth R. Lenz et al. · JAMA · 2000 · 961 citations · Full text
Hospital Characteristics and Mortality Rates
Arthur J. Hartz, Henry Krakauer, Evelyn M. Kuhn et al. · New England Journal of Medicine · 1989 · 507 citations