Molecular spectrum of KRAS, NRAS, BRAF, PIK3CA, TP53, and APC somatic gene mutations in Arab patients with colorectal cancer: determination of frequency and distribution pattern Colorectal surgery  Dubai UAE Sadir Alrawi MD FRCSEd FRCSEng CABS DGS , Best Oncology Team for ColoRectal Surgery, Head & Neck Surgery, Liver & Pancreas Surgery, Melanoma & Sarcoma, HIPEC,