Career Focus
Briefing
BMJ 1999; 318 doi: https://doi.org/10.1136/bmj.318.7196.3 (Published 29 May 1999) Cite this as: BMJ 1999;318:S3-7196
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.