How many months does Changsha Ivy medical science and technology year-end award last?

Two months. Changsha Ivy Medical Science and Technology Year-end Award was held in the last two months. Changsha, also known as Xingcheng, is a prefecture-level city, provincial capital and megacity under the jurisdiction of Hunan Province. It is located in the middle of China, downstream of Xiangjiang River, on the west edge of Changliu Basin, and in the northeast of Hunan, between1153'-1414.