[1] ABT Associates Inc, Bethesda, MD 20814 USA
[2] Free Univ Amsterdam, Amsterdam, Netherlands
[3] Johns Hopkins Univ, Sch Publ Hlth, Dept Hlth Policy & Management, Baltimore, MD USA
[4] Kazakhstan Sch Publ Hlth, Dept Hlth Policy & Management, Alma Ata, Kazakhstan
[5] Bitran Asociados, Santiago, Chile
[6] Univ Witwatersrand, Ctr Hlth Policy, ZA-2050 Wits, South Africa
[7] London Sch Hyg & Trop Med, Hlth Policy Unit, London WC1, England
[8] Univ Cape Town, Hlth Econ Unit, ZA-7925 Cape Town, South Africa
[9] Naresuan Univ, Ctr Hlth Equ Monitoring, Fac Med, Phitsanulok, Thailand
[10] Dev Associates, Arlington, VA USA