[1] Univ Toronto, Div Cardiac Surg, Toronto, ON, Canada
[2] JOS Univ Teaching Hosp, Dept Paediat, Jos, Plateau, Nigeria
[3] Childrens Natl Hosp, Outpatient Cardiol, Washington, DC USA
[4] Natl Inst Hlth Off Dis Prevent, Bethesda, MD USA
[5] John E Fogarty Int Ctr, Div Int Training & Res, Bethesda, MD USA
[6] Brigham & Womens Hosp, Ctr Integrat Sci, Boston, MA USA
[7] Harvard Med Sch, Program Global Surg & Social Change, Boston, MA USA
[8] Telethon Kids Inst, Dept Global Hlth & Populat, Nedlands, WA, Australia
[9] Inova Children Hosp, Pediat Heart Surg, Falls Church, VA USA
[10] Univ Oklahoma, Hlth Sci Ctr, Oklahoma City, OK USA
[11] NHLBI, Bethesda, MD USA
[12] All India Inst Med Sci, New Delhi, Delhi, India
[13] Univ Cape Town Fac Hlth Sci, Global Surg, Observ, Western Cape, South Africa
[14] Inst Nacl Saude, Non Communicable Dis, Maputo, Mozambique
[15] Univ Eduardo Mondlane, Maputo, Mozambique
[16] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Dept Surg, Div Cardiac Surg, Boston, MA USA
[17] Uganda Heart Inst Ltd, Cardiol, Kampala, Uganda
[18] Charles Darwin Univ, Menzies Sch Hlth Res, Casuarina, NT, Australia
[19] South African Med Res Council, Tygerberg, South Africa
[20] Red Cross War Mem Childrens Hosp, Dept Med, Rondebosch, Western Cape, South Africa
[21] Childrens Natl Hosp, Div Cardiol, Washington, DC 20010 USA