Identification of seven novel variants in the β-globin gene in transfusion-dependent and normal patients oleh Sumayh A. Aldakeel, Neda Z. Ghanem, Amani M. Al-Amodi, Ahoud Khalid Osman, Lubna Ibrahim Al Asoom, Nazish Rafique Ahmed, Noor B. Almandil, Mohammed Shakil Akhtar, Sayed Azeez, J. Francis Borgio