The publication of the results of a European Union funded Reflex-Studie into causes of cell mutation in human genes and the creation of cancerous cells has led the Vienna doctors professional organisation, theWiener rztekammer, to issue a warning about the use of mobile phones by children. The study, which involved various European research centres, including the Wiener AKH, has found that there is a definite geno-toxic effect on human cell cultures from mobile phone radiation. This result confirms an earlier study on rats, which found an increased number of non-functioning nerve cells in the brain after only two hours of exposure to radiation from mobile phones. The Wiener rtzkammer has also drawn up a list of dos and donts, directed primarily, but not exclusively, at children. The list includes a recommendation that under-16s should avoid mobile phone use completely, and that all mobile phone calls should be brief and used in emergencies only. Even SMS texts come under fire, with instructions to keep the phone away from the body while sending and receiving messages. A spokesperson from the organisation commented: If medications delivered the same test results as mobile phone radiation one would have to remove them immediately from the market.