As the disease-free 5-year-survival of late stage laryngeal carcinoma patients is extremely low. indoleamine-2. 3-dioxygenase-1 (IDO)-induced tryptophan degradation may represent an immune escape mechanism which plays an important role in cancer spreading in advanced stage laryngeal cancers. We examined whether the late stage laryngeal cancer enhances tumor immune evasion by the expre... https://chefesquipmenters.shop/product-category/dunnage-racks/