Editorials
Copenhagen's challenge
BMJ 1995; 310 doi: https://doi.org/10.1136/bmj.310.6979.544 (Published 04 March 1995) Cite this as: BMJ 1995;310:544
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.