Genotype patterns for mutations of the cystic fibrosis transmembrane conductance regulator gene: a retrospective descriptive study from Saudi Arabia oleh Hanaa Hasan Banjar, Lin Tuleimat, Abdul Aziz Agha El Seoudi, Ibrahim Mogarri, Sami Alhaider, Imran Yaqoob Nizami, Talal AlMaghamsi, Sara Andulrahman Alkaf, Nabil Moghrabi