目前直肠癌的5年存活率约为35％,为此各国科学家都在寻找和探讨一种更为有效的治疗方法。英国医生Krook和他的同事们发明了一种较为理想的治疗方法,即手术后放射和化疗合并进行,这样可以延长患者的生存期。这是Krook等对204 At present, the 5-year survival rate of rectal cancer is about 35%, and scientists from all over the world are looking for and exploring a more effective treatment method. British doctor Krook and his colleagues invented a more ideal method of treatment, that is, postoperative radiotherapy and chemotherapy combined to extend the survival of patients. This is Krook et al. 204