1. IRCCS MultiMedica , Via Gaudenzio Fantoli, 16/15, Milan 20138 , Italy
2. CORESEARCH—Center for Outcomes Research and Clinical Epidemiology , Corso Umberto I, 103, 65122, Pescara , Italy
3. Health Metrics, Department of Public Health and Community Medicine, Sahlgrenska Academy, University of Gothenburg , Medicinaregatan 3, 413 90, Gothenburg , Sweden
4. Center of Registries , Västra Götaland, Medicinaregatan 18 G, 413 45 Gothenburg , Sweden
5. Department of Medicine, Sahlgrenska University Hospital , Blå stråket 5, 413 45 Gothenburg , Sweden