国际合作基地推动“一带一路”传统医药多维合作研究实践———以湖南省中医药民族医药国际科技创新合作基地为例-The Multi-directional Cooperative Research Practice of the Traditional Medicine of “the Belt and Road” Based on the International Cooperation Base: Taking the International Scientific and Technological Innovation Cooperation Base of TCM and Ethnic Medicine of Hunan Province as an Example