Interphone Study Authors: Klose, M; based on the research of Tillmann and Lerchl et al (2010) Conducting the study: German Federal Office for Radiation Protection (BfS) Source: InterPhone Date: 2010-2011 Information: n= >5000 test subjects; Study in 13 countries in total, financed from public funding as well as approx. 30 percent of the mobile phone