从柳树皮里提取抗癌物英国科学家最近在非洲一种柳树皮中发现一种能抗癌的天然药物，这种物质名为Ｃｏｍｂｒｅｔａｓｔａｔｉｎ，它可使恶性肿瘤缩小近９５％。对动物的实验表明，它能使为恶性肿瘤供给营养的血管萎缩，从而达到使肿瘤缩小的目的，预计这种药物如果与化疗... Extracting anti-cancer substances from willow bark British scientists recently discovered a natural anti-cancer drug in a willow bark in Africa called Combretastatin, which can reduce malignant tumors by nearly 95%. Experiments on animals show that it can atrophy of the vessels supplying nutrients to malignant tumors so as to reduce the size of the tumor.