Kras Immunehistochemical Expression In Colorectal Cancer. Journal of Pharmaceutical Negative Results, [S. l.], p. 147–157, 2023. DOI: 10.47750/pnr.2023.14.02.18. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/7120.. Acesso em: 9 jun. 2026.