1. Agarwall PK, Misra M, Sarkari NB, Gupta AK, Agarwall P (1998) Usefulness of echocardiography in detection of subclinical carditis in acute rheumatic polyarthritis and rheumatic chorea. J Assoc Physicians India 46:937–938
2. Akalın F (2007) Novelties in acute rheumatic fever. Turk Arch Ped 42:85–93
3. Atalay S, Uçar T, Ozçelik N, Ekici F, Tutar E (2007) Echocardiographic evaluation of mitral valve in patients with pure rheumatic mitral regurgitation. Turk J Pediatr 49:148–153
4. Ayoub EM (2001) Acute rheumatic fever. In: Allen HD, Gutgesel HP, Clark EB, Driscoll DJ (eds) Moss and Adams’ heart disease in infants, children and adolescents, 6th edn. Lippincott Williams and Wilkins, Philadelphia, pp 1226–1241
5. Baumgartner H, Kratzer H, Helmreich G, Kühn P (1988) Quantitation of aortic regurgitation by colour coded cross-sectional Doppler echocardiography. Eur Heart J 9:380–387