[http://www.inchem.org/documents/pims/chemical/pim257.htm#2.1%20Main%20risks% 20and%20target%20organs; 2007-07-12].
[http://www.inchem.org/documents/pims/chemical/pim257.htm#2.1%20Main%20risks% 20and%20target%20organs; 2007-07-12].