1. Pediatric cardiology;DC, Nadas A.S.Fyler,1972
2. Acute rheumatic fever;EL, Wannamaker L.W.Kaplan,1977
3. Acute rheumatic carditis;Oakley, C.M.,1980
4. Valvular heart diseasc in South Africa. South Africani Journial of Conitinuinig Medical Educationi;Barlow, J.B.,1983
5. Rheutnaticfever;L, Markowitz M.Gordis,1972