The Association Between CYP24A1 rs4809957 Gene Polymorphism and Grade of Colorectal Cancer at Prof. Dr. I G.N.G Ngoerah Hospital in Bali Anak Agung Indah Puspitasari1*, Ni Nyoman Ayu Dewi2, I Gusti Ayu Artini3, I Made Mulyawan4, and Ni Putu Ekawati5 Abstract Introduction: Colorectal cancer (CRC) is a malignancy in the