Pharmaceuticals: Epogen, created to treat chronic anemia, is hard to trace and is used illegally by athletes to boost performance.

DaVita Inc. <DVA.N>, an operator of dialysis centers, on Thursday said it received a subpoena from the U.S. government related to records for claims submitted for the Amgen Inc. <AMGN.O ...

to Epogen or once-weekly Aranesp, both sold by Amgen Inc , in patients with chronic renal failure are expected in the second quarter of next year.