1 Division of clinical epidemiology, Geneva University Hospitals, and Faculty of medicine, University of Geneva, Geneva, Switzerland. thomas.perneger@hcuge.ch.
2 Teem Photonics, 61 Chemin du Vieux Chêne, 38240, Meylan, France.
3 Neel Institute, Université Grenoble Alpes, Grenoble, France.
4 Institute of Environmental Geosciences, Université Grenoble Alpes, Grenoble, France.
5 Division of clinical epidemiology, Geneva University Hospitals, and Faculty of medicine, University of Geneva, Geneva, Switzerland.