Abdel Aziz, M. T.; Mostafa, T.; Atta, H.; Asaad, S.; Fouad, H. H.; Mohsen, G.; Rashed, L.; Sabry, D.; Abbas, M. In Vitro and in Vivo Lineage Conversion of Bone Marrow Stem Cells into Germ Cells in Experimental Azoospermia in Rat. Stem Cell Stud 2011, 1, e15.