University of Oslo, University of Milan-Bicocca, Polytechnic University of Milan, Polytechnic University of Milan, Polytechnic University of Milan, Polytechnic University of Milan, University of Toronto - The Hospital for Sick Children - SickKids, Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), Bambino Gesù Children's Hospital - Academic Department of Pediatrics (DPUO), University of Oslo - PharmaTox Strategic Research Initiative, University of Oslo - Pharmacoepidemiology and Drug Safety Research Group, University of Padua, University of Padua - Department of Women’s and Children’s Health, University of Toronto - The Hospital for Sick Children - SickKids and University of Milano-Bicocca