UPDATE 1-Fresenius Medical, DaVita subpoenaed over premium assistance
January 07, 2017 at 12:40 PM EST
BERLIN/NEW YORK, Jan 7 (Reuters) - German's Fresenius Medical Care and U.S. rival DaVita Inc said they had both received subpoenas from federal prosecutors investigating their ties with a charity that helps patients pay for kidney dialysis.
