<a href=http://bcialis.mom>cialis vs viagra</a> We would not take this approach for any subsequent drugs that are approved by the FDA and fall within the bone and mineral metabolism functional category or any other functional categories because we did not delay payment for any other drugs or biologicals for which we had 2007 utilization data when the ESRD PPS was implemented in CY 2011 and, therefore, we believe the other functional categories appropriately reflect renal dialysis service drugs and biologicals