National Guidelines for Colorectal Cancer Screening in Saudi Arabia with strength of recommendations and quality of evidence oleh Nasser Alsanea, Majid A. Almadi, Alaa S. Abduljabbar, Samar Alhomoud, Taghreed A. Alshaban, Abdullah Alsuhaibani, Ahmad Alzahrani, Faisal Batwa, Abdul-Hameed Hassan, Denise Hibbert, Randa Nooh, Mohammed Alothman, Bram Rochwerg, Waleed Alhazzani, Rebecca L. Morgan