By Lisa Baertlein, Arriana McLymore and Helen Reid LOS ANGELES/NEW YORK (Reuters) - On Wednesday, Matthew Cannon's college-age daughter forwarded him a request from delivery company DHL asking for duties and fees of $45.

Beijing hit back with its own tariffs and export restrictions after being subjected to levies by President Trump. Trade experts said China appeared to aim for minimal short-term harm while showing the range of its possible responses.

President Donald Trump is facing pressure from U.S. hospitals and generic drugmakers to exempt medical goods from his new tariffs on Chinese imports, as they join big pharma lobbyists who have said such trade barriers will cause shortages of medicines and higher prices in the United States.