Letters
Melatonin is available over the counter
BMJ 1996; 313 doi: https://doi.org/10.1136/bmj.313.7057.629b (Published 07 September 1996) Cite this as: BMJ 1996;313:629
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.