News
United States
BMJ 1998; 316 doi: https://doi.org/10.1136/bmj.316.7133.723l (Published 07 March 1998) Cite this as: BMJ 1998;316:723
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.