1974年美国仅在高等植物药品上就消费30亿美元,这些药品在1959～1974年间一直占所有处方药的25％。在美国除国立肿瘤研究所外,都缺乏组织系统地进行从高等植物发掘新药的工作。因此,作者根据文献 In 1974, the United States spent only 3 billion U.S. dollars on higher-level plant medicines, which accounted for 25% of all prescription drugs between 1959 and 1974. In addition to the National Cancer Institute in the United States, there is a lack of systematic and systematic efforts to discover new drugs from higher plants. Therefore, the author based on the literature