Effect of Vitamin E and Metformin on Fatty Liver Disease in Obese Children- Randomized Clinical Trial - Shiasi Arani, Kobra; Taghavi Ardakani, Abbas; Moazami Goudarzi, Razieh; Talari, Hamid Reza; Hami, Kamran; Akbari, Hossein; Akbari, Nima (Iranian Journal of Public Health)