%0 Journal Article %T An observational study of vascular endothelial growth factor inhibitors as second-line treatment for metastatic colorectal cancer treated with bevacizumab plus FOLFIRI beyond progression: the association with RAS mutation and tumor sidedness %A Cheng-Jen Ma %A Ching-Wen Huang %A Hsiang-Lin Tsai %A Jaw-Yuan Wang %A Po-Jung Chen %A Tsung-Kun Chang %A Wei-Chih Su %A Yung-Sung Yeh %J SCIE-indexed Journal %D 2019 %R 10.21037/32576 %X Curative surgical resection is a treatment for initial colorectal cancer (CRC) (1). If resection is unfeasible, then chemotherapy or target therapy is used to prolong life expectancy %U http://tcr.amegroups.com/article/view/32576/html