Vitamin D3 enhances the tumouricidal effects of 5-Fluorouracil through multipathway mechanisms in azoxymethane rat model of colon cancer. - Refaat, Bassem; El-Shemi, Adel Galal; Kensara, Osama Adnan; Mohamed, Amr Mohamed; Idris, Shakir; Ahmad, Jawwad; Khojah, Athar (Journal of Experimental & Clinical Cancer Research (17569966), 2015)