Diagnostic Value of Electrocardiography Compared with Echocardiography in Measuring Left Ventricular Mass Index in Major Thalassemia Patients Over 10 Years of Age - Noori, Noormohammad; Mahjoubifard, Maziar; Alavi, Seyed Mostafa; Hosseini, Saeid; Sanati, Hamidreza; Mirmesdagh, Yalda (The Research in Heart Yield and Translational Medicine (RHYTHM), 2015)