Eman E. Abo Shama, Atef Y. Riad, Dina A. Salem, Amr L. Farrag, Diaa Eldin M. Sherif. “Role of Metformin in Enhancing Response to Neoadjuvant Chemo-Radiotherapy in Patients With Locally Advanced Rectal Carcinoma”. Annals of the Romanian Society for Cell Biology, vol. 25, no. 2, Mar. 2021, pp. 3677-8, http://annalsofrscb.ro/index.php/journal/article/view/1365.