[1] Univ New S Wales, Kirby Inst, Sydney, NSW, Australia
[2] Univ Calif San Francisco, San Francisco, CA 94143 USA
[3] Burnet Inst, Melbourne, Vic, Australia
[4] GGD Publ Hlth Serv Amsterdam, Amsterdam, Netherlands
[5] Univ Montreal, Montreal, PQ, Canada
[6] Johns Hopkins Med Inst, Baltimore, MD 21205 USA
[7] Harvard Univ, Sch Med, Boston, MA USA
[8] Tufts Med Sch, Boston, MA USA
[9] Univ Sydney, Westmead Millennium Inst, Sydney, NSW 2006, Australia
[10] Univ New S Wales, Sch Med Sci, Sydney, NSW, Australia