Correspondence
Ethics of clinical research: Authors' reply
British Medical Journal 1989; 299 doi: https://doi.org/10.1136/bmj.299.6701.738 (Published 16 September 1989) Cite this as: British Medical Journal 1989;299:738
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.