Intraplatelet Vascular Endothelial Growth Factor and Platelet-Derived Growth Factor: New Biomarkers in Carcinoembryonic Antigen-Negative Colorectal Cancer?

血小板内血管内皮生长因子和血小板衍生生长因子：癌胚抗原阴性结直肠癌的新型生物标志物？