You were very helpfully able to provide me with PPA data on CHD related drugs (see below) up to end 2002- I wonder if you would be able to update these data. As before my interest is in using these data in modelling the cost effectiveness of treatments of CHD." The data provided was cost (NIC) and DDD for a variety of groups of cardiovascular drugs (BNF Chapter 2) by quarter. Data would start at Q to Mar 03 up to most recent available