International Agency for Research on Cancer
"The International Agency for Research on Cancer (IARC) is part of the World Health Organization (WHO).
IARC's mission is to coordinate and conduct research on the causes of human cancer, the mechanisms of carcinogenesis, and to develop scientific strategies for cancer control. The Agency is involved in both epidemiological and laboratory research and disseminates scientific information through publications, meetings, courses, and fellowships."
It has collaborated to and published many highly recognized scientific publications.
Most publications are availaible from the webpage IARC Monographs Programme on the Evaluation of Carcinogenic Risks to humans , "The IARC Monographs series publishes authoritative independent assessments by international experts of the carcinogenic risks posed to humans by a variety of agents, mixtures and exposures."
IARC distinguishes between four groups of compounds or physical factors based on the existing scientific evidence for carcinogenicity: Standard IARC classification
Source: IARC website
Deutsch: Internationale Agentur für Krebsforschung
Español: Agencia Internacional para la Investigación del Cáncer
Français: Centre International de Recherche sur le Cancer