فهرس المقالات Thalassemia major حرية الوصول المقاله صفحة الملخص نص كامل 1 - The effectiveness of positive thinking training on perceived stress and happiness in patients with thalassemia major Ommolbanin Roodbari Hossein Zare Hadis Saeedi Kouros Divsalar Fatemeh Eslamian