Clinical study of bi yan qing du ke li and nasosinusitis relieving oral liquid in treatment of EB virus VCA/IgA titers in patients with high risk of nasopharyngeal carcinoma

• 鼻咽清毒颗粒加鼻渊舒口服液抑制鼻咽癌高危人群EB病毒VCA/IgA的临床观察