Authors' reply

BMJ 1996; 313 doi: https://doi.org/10.1136/bmj.313.7071.1551b (Published 14 December 1996) Cite this as: BMJ 1996;313:1551
  1. Rob Wilson,
  2. Juanita Hatcher,
  3. Stuart Barton,
  4. Tom Walley
  1. Research pharmacist Senior research fellow in epidemiology Senior lecturer in primary care therapeutics Professor of clinical pharmacology Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool L69 3BX

    EDITOR,—We agree with Sarah J Roberts that an ideal analysis would reflect all morbidity and demographic factors that may influence prescribing. However, breakdowns by age and sex were not available to us for all the practices in the former Mersey region for the period of …

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