IARC 1999: INTERNATIONAL AGENCY FOR RESEARCH ON CANCER, IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, Volume 73, WHO [http://monographs.iarc.fr/ENG/Monographs/vol73/volume73.pdf, 2012-02-01]
IARC 1999: INTERNATIONAL AGENCY FOR RESEARCH ON CANCER, IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, Volume 73, WHO [http://monographs.iarc.fr/ENG/Monographs/vol73/volume73.pdf, 2012-02-01]