BARBERO, U. EXERCISE STRESS ECHOCARDIOGRAPHY WITH TISSUE DOPPLER IMAGING (TDI) DETECTS EARLY SYSTOLIC DYSFUNCTION IN BETA-THALASSEMIA MAJOR PATIENTS WITHOUT CARDIAC IRON OVERLOAD. Mediterranean Journal of Hematology and Infectious Diseases, [S. l.], v. 4, n. 1, p. e2012037, 2012. DOI: 10.4084/mjhid.2012.037. Disponível em: https://www.mjhid.org/index.php/mjhid/article/view/2012.037. Acesso em: 16 jan. 2022.