28 Zhang Zhang J J Zheng Zheng J J Yang Yang Y Y Lu Lu J J Gao Gao J J Lu Lu T T Molecular spectrum of KRAS, NRAS, BRAF and PIK3CA mutations in Chinese colorectal cancer patients: Analysis of 1,110 cases Molecular spectrum of KRAS, NRAS, BRAF and PIK3CA mutations in Chinese colorectal cancer patients: Analysis of 1,110 cases Sci Rep Sci Rep 2015 2015 5 5 18678 18678 18678 18678 10.1038/srep18678 10.1038/srep18678 26691448 26691448. This evidence concerns the gene PIK3CA and colorectal cancer.