McClellan, M., & Staiger, D. (1999). The quality of health care providers. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)McClellan, Mark, agus Douglas Staiger. The Quality of Health Care Providers. Cambridge: National Bureau of Economic Research, 1999.
Lua MLA (9ú heag.)McClellan, Mark, agus Douglas Staiger. The Quality of Health Care Providers. National Bureau of Economic Research, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.