Increasing Efficiency with Scale in HIV Prevention: Bigger is Better (7/13/2007) Landmark Supplement on Cancer Initiatives in Developing Countries Published with the Annals of Oncology (6/29/2006) Strengthening of Health Care Services and Infrastructure Critical but Neglected Factor in Access to Care (en anglais) (10/3/2005) Bangkok - XVème Conférence Internationale VIH/SIDA 2004 (7/9/2004)