TY - JOUR A1 - Evans, D.B. A1 - Tandon, A. A1 - Murray, C.J. L. A1 - Lauer, J.A. T1 - Comparative efficiency of national health systems: cross national econometric analysis Y1 - 2001 DO - 10.1136/bmj.323.7308.307 JF - British Medical Journal VL - 323 SP - 307 EP - -310 ER -