1. Clinic for Rheumatology and Immunology, Hannover Medical School, Carl-Neuberg-Strasse 1, 30265 Hannover, Germany
2. Sociology of Health and Health Systems, Faculty I, University of Siegen, Adolf-Reichwein-Strasse 1, 57068 Siegen, Germany
3. Département de Gestion, D’évaluation et de Politique de Santé École de Santé Publique, Université de Montréal, C.P. 6128 Succursale A, Montréal, QC H3C 3J7, Canada
4. Département de Sociologie, Université Laval, Pavillon Charles-De Koninck, 1030, Avenue des Sciences-Humaines, Bureau 3469, Québec, QC G1V 0A6, Canada
5. Department of Public Administration, Getulio Vargas Foundation, Av Nove de Julho 2029, São Paulo 01313-902, Brazil
6. Center of Metropolitan Studies, Cidade Universitária, 109, São Paulo 05508-060, Brazil
7. Department of Social and Political Sciences, University of Milan, Via Conservatorio 7, 20122 Milan, Italy