“…However, due to the persisting burden of the disease in some areas of the world echocardiography has been used in community studies in Mozambique and Cambodia (Marijon et al, 2007), Tonga (Carapetis et al, 2008), Nicaragua (Paar et al, 2010), Fiji (Steer et al, 2009;Reeves et al, 2011), Kenya (Anabwani et al, 1996), India (Thakur et al, 1996;Bhaya et al, 2010), Pakistan (Sadiq et al, 2009;Rizvi et al, 2004) and China (Zhimin 2006). These studies applied different inclusion and diagnostic criteria, raising the issue about the need for standardization of the definition of rheumatic heart valve disease by echocardiography.…”