Considering that the World Health Organization published in 2000 the Guide to Drug Abuse Epidemiology with the objective of updating the methodology for the collection of data incorporating technical advances of the previous twenty years,
考虑到世界卫生组织在2000年出版了《吸毒流行病学指南》，目的是利用过去二十年的技术发展，更新收集数据的方法，