Mao, G., F. Marotta, J. Yu, and L. Zhou, et al. 2008. “DNA Context and Promoter Activity Affect Gene Expression Inlentiviral Vectors”. Acta Biomedica Atenei Parmensis 79 (3): 192-96. https://mattioli1885journals.com/index.php/actabiomedica/article/view/1247.