Statement on advancing the assessment of chemical mixtures and their risks for human health and the environment oleh Elina Drakvik, Rolf Altenburger, Yasunobu Aoki, Thomas Backhaus, Tina Bahadori, Robert Barouki, Werner Brack, Mark T.D. Cronin, Barbara Demeneix, Susanne Hougaard Bennekou, Jacob van Klaveren, Carsten Kneuer, Marike Kolossa-Gehring, Erik Lebret, Leo Posthuma, Lena Reiber, Cynthia Rider, Joëlle Rüegg, Giuseppe Testa, Bart van der Burg, Hilko van der Voet, A. Michael Warhurst, Bob van de Water, Kunihiko Yamazaki, Mattias Öberg, Åke Bergman