[1] Harvard TH Chan Sch Publ Hlth, Boston, MA 02115 USA
[2] Imperial Coll London, London, England
[3] Queens Univ, Kingston, ON, Canada
[4] Univ Edinburgh, Edinburgh, Midlothian, Scotland
[5] Harvard Univ, Cambridge, MA 02138 USA
[6] United Nations Dev Programme, New York, NY USA
[7] Univ British Columbia, Vancouver, BC, Canada
[8] Chestnut Hill Coll, Philadelphia, PA USA
[9] Univ Calif Riverside, Riverside, CA 92521 USA
[10] Univ Winchester, Winchester, Hants, England
[11] Purdue Univ, W Lafayette, IN 47907 USA