1Department of General Practice and Family Medicine, Center for Public Health, Medical University of Vienna, Kinderspitalgasse 15, 1090 Vienna, Austria
2Department of Social Care, Odisee University College, Brussels, Belgium
3Department of Physical Therapy and Motor Rehabilitation, Ghent University, Ghent, Belgium
4Department of Family Medicine, School of Medicine, University of Zagreb, Zagreb, Croatia
5Zagreb-Centar, Health Center, Zagreb, Croatia
6Institute of Geography and Sustainability, University of Lausanne, Lausanne, Switzerland
© The Author(s). 2019
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