1. Health Services Research Group, IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain.
2. CIBER en Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
3. Department of Preventative Medicine, Universitat Autonoma de Barcelona (UAB), Barcelona, Spain.
4. Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.
5. Public Health Agency of Barcelona, Barcelona, Spain.
6. Department of Experimental and Health Sciences, Pompeu Fabra University (UPF), Barcelona, Spain.
7. Health Inequalities Research Group, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona, Spain.
8. CAP Vila Olimpica, Parc Sanitari Pere Virgili, Barcelona, Spain.