The BILD study is only possible thanks to an engaged, international, interdisciplinary research team. Our team is comprised of PhD and Master's students, researchers, administrators and study nurses. The team is led by Prof. Dr. med. Urs Frey (Basel) and Prof. Dr. med. Philipp Latzin (Bern). The study's co-investigators are Martin Röösli (Swiss TPH, University of Basel) and Claudia Kühni (Institute of Social and Preventive Medicine, University of Bern).