一种治疗癌症的方法，主要通过天然防御机制或用天然哺乳动物材料做药物，发挥抗肿瘤效应biotherapy

• 肿瘤内科引入了国外先进的生物疗法。

  The Department of Oncology has introduced cutting-edge biotherapies from overseas.

• 放疗、化疗、生物疗法是当前防治癌症的主要手段。

  Radiotherapy, chemotherapy, and biotherapy are the primary methods of prevention and treatment of cancer available at present.