Olfat Gamil Shaker, Fat’heya Mohamed Zahran, N. N. M. E.-Z. G. G. M. H. A. F. . CANCER CHEMOPREVENTION BY METFORMIN HYDROCHLORIDE COMPARED TO PLACEBO IN ORAL POTENTIALLY MALIGNANT LESIONS: A RANDOMIZED CLINICAL TRIAL. Annals of RSCB 2021, 25, 19079-19098.