1. Department for Health, University of Bath, Bath, United Kingdom;
2. Berner Institut für Hausarztmedizin, Universität Bern, Bern, Switzerland;
3. Majorca Primary Health Care Department & Instituto de Investigación sanitaria Illes Balears (idISBA), Palma Mallorca, Spain;
4. Department for Health Education and Health Promotion, Teaching Institute of Public Health of Primorsko-Goranska County, University of Rijeka, Rijeka, Croatia;
5. Unitat de Suport a la Recerca, IDIAP Jordi Gol, Direcció d'Atenció Primària Costa de Ponent, Institut Català de la Salut, Cornellà de Llobregat, 08940, Spain;
6. Department of Family Medicine, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia;
7. Department of Clinical Sciences, Lund University, Lund, Sweden