SAMUHASANEETO, S., S. PROMAGSORN, and C. PUNSAWAD. “Sphingosine 1-Phosphate Receptor 4 Expression in Colorectal Cancer Patients”. Walailak Journal of Science and Technology (WJST), vol. 14, no. 8, June 2016, pp. 663-9, https://wjst.wu.ac.th/index.php/wjst/article/view/2228.