forty-three patients with beta-thalassemia from northern sardinia ( 31 severe and polytransfused , six follow-up babies , five adults with mild thalassemia who were not transfusion dependent , and a young transfused patient was also affected by a disease of intermediate severity ) were studied in order to establish the fetal hemoglobin composition , restriction fragment length polymorphism haplotypes at the beta-globin gene cluster , and the type ( s ) of mutation .
C0005283
beta-thalassemia
C0039730
thalassemia