I don't know if banning federal scientist from publishing has legal basis but creating a state run medical journal is not a bad idea in concept but we all know it will be used to push narratives that the state wants to push. Vaccines are bad, Trump coin cures cancer, unregulated substances from RFK's company will add years onto your life. You can always find 5 to 10 unscrupulous scientist or college professors who will trade ethics for dollars. Just call them leading scientist and have them publish whatever you want.