Epidemiological evidence on mobile phones and tumor risk: a review
This review summarizes and interprets epidemiological evidence bearing on a possible causal relation between radio frequency field exposure from mobile phone use and tumor risk. In the last few years epidemiological evidence on mobile phone use and the risk of brain and other tumors of the head in adults has grown in volume, geographic diversity of study settings, and the amount of data on longer-term users. However, some key methodological problems remain, particularly with regard to selective non-response and inaccuracy and bias in recall of phone use.