http://www.who.int/mediacentre/factsheets/fs193/en/index.html

WHO published different fact sheets on electromagnetic fields and their effects on human health. An update of the "mobile phone fact sheet 193 (June 2011) is not very different from the previous version(s). It still states that to date, no adverse health effects have been established as being caused by mobile phone use. It also says that it is still too early to fully assess long term effects in humans but that results of animal studies consistently show no increased cancer risk for long-term exposure to radiofrequency fields.
