Authors:
Arnold M, Holterhues C, Hollestein L, Coebergh J, Nijsten T, Pukkala E, Holleczek B, Tryggvadóttir L, Comber H, Bento M, Diba C, Micallef R, Primic-Žakelj M, Izarzugaza M, Perucha J, Marcos-Gragera R, Galceran J, Ardanaz E, Schaffar R, Pring A de Vries E