Letters
Passive smoking
Wider evidence needs to be interpreted
BMJ 2003; 327 doi: https://doi.org/10.1136/bmj.327.7413.501-a (Published 28 August 2003) Cite this as: BMJ 2003;327:501
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.