4月16日电，美国总统特朗普签署关于医疗保健的行政令，旨在推动美国医疗保险药品价格谈判流程的变革。

Core Viewpoint - The article discusses President Trump's signing of an executive order aimed at reforming the drug price negotiation process in the U.S. healthcare system [1] Group 1 - The executive order is intended to promote changes in the negotiation process for drug prices under U.S. healthcare insurance [1]