In 1996, on behalf of the Swedish National Board of Health and Welfare,
I compiled the report Skador av hasch och marijuana: En genomgång av vetenskapliga
studier av skadepanoramat hos cannabis (subsequently translated into English
as Adverse Health Consequences of Cannabis Use: A Survey of Scientific Studies
into the Range of Damage to Health Caused by Cannabis). In the report, I tried to
cover all that had been published up to and including February 1996. In 2003, on
behalf of the Swedish National Institute of Public Health, the report was updated
with the scientific studies published up to and including the autumn of 2003. As
with its predecessor, an English version of the report was also published. It was also
made available for download from the institute website. The present version has the
same structure as the two previous versions. In other words, the additions are not
intended to form a supplement, but to be integrated with the earlier material.
Otherwise, this is still a report solely concerning the harmful effects of cannabis
use. This is the reason that the introductory remarks on cannabis are so brief.