title: Authors' reply to Fralick and Kesselheim.
authors.affiliation: Working Group on Health, Transparency International Germany, and Comprehensive Cancer Centre Aachen, Pauwelsstrasse 30, 52074 Aachen, Germany.
authors.forename: Angela
authors.initials: A
authors.lastname: Spelsberg
authors.affiliation: Institute of Epidemiology and Social Medicine, University of Münster, Albert Schweitzer Campus 1, 48149 Münster, Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Keil
authors.affiliation: Institute of Public Health, Charité-Universitätsmedizin Berlin, Seestraße 73, 13347 Berlin, Germany.
authors.forename: Christof
authors.initials: C
authors.lastname: Prugger