For the last eight years (2007-2015), chemicals and
diseases have been continuously reviewed on an almost daily basis as questions
were asked and new
chemicals were added and compared to chemicals already in the database.
Information from textbooks is reviewed when new editions are
published. Periodically, all journal articles in selected journals are reviewed.
The last reviews of journal articles were done in 2008, 2011, and
2015. The selected journals
are: Am J Ind Med, Chest, Int Arch Occup Environ Health, J Occup
Environ Hyg, J Occup Environ Med, Occup Environ Med, and Scand J Work