1. From Hatter Institute for Cardiovascular Research in Africa & IDM, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa (K.S.); Soweto Cardiovascular Research Unit, University of the Witwatersrand, Johannesburg, South Africa (K.S.); Medical Research Council of South Africa, Inter-Cape Heart Group, Cape Town, South Africa (K.S.); Division of Hospital Internal Medicine, Department of Medicine, Mayo Clinic Hospitals, Rochester, MN (L.A.); Division of...