1. Indications for selected medical and surgical procedures - a literature review and ratings of appropriateness: coronary artery bypass graft surgery;Chassin, M.R.; Park, R.E.; Fink, A.,3204
2. Measuring the clinical appropriateness of the use of a procedure: can we do it?;L, Kahn K.; J, Kosecoff; MR, Chassin;Med Care,1988
3. The quality of medical care: information for consumers;Congress, U.C.; of Technology Assessment, Office,OTA-H-386.)
4. Are hospital services rationed in New Haven or over-utilised in Boston?;Wennberg, J.E.; Freeman, J.L.; Culp, W.J.;Lancet,1987
5. European study of referrals from primary to secondary care. Report to the Concerted Action Committee of Health Services Research for the European Community,1992