Letters
Editorial practice
British Medical Journal 1993; 306 doi: https://doi.org/10.1136/bmj.306.6888.1346-c (Published 15 May 1993) Cite this as: British Medical Journal 1993;306:1346
Article usage
Article metrics provide readers and authors with an indication of how often a specific article has been accessed month by month. It counts three formats - abstract/extract, full text and pdf. The page is updated each day.