I am writing to advise you that following a search of our paper and electronic records, I have established that the information you requested is not held by the NHS Business Services Authority.

However it is possible that NHS Digital may hold some or all of the information you require. They can be contacted at:

NHS Digital
1 Trevelyn Square
Boar Lane
Leeds
LS1 6AE
Tel 0300 3035678
email enquiries@nhsdigital.nhs.uk  
Website http://digital.nhs.uk/