1. Section of Rheumatology, The University of Chicago, Chicago, IL 60637, USA
2. Hcor Research Institute (IP-Hcor), Hcor, São Paulo 04004-050, Brazil
3. Pulmonary Division, Heart Institute (InCor), University of Sao Paulo Medical School, São Paulo 05403-903, Brazil
4. Graduate Program in Health Sciences (Cardiology), Cardiology Institute, University Foundation of Cardiology (IC/FUC), Porto Alegre 90050-170, Brazil
5. Department of Biochemistry and Biomedical Research Center, School of Medicine, University of the Republic, Montevideo 11800, Uruguay
6. Graduate Program in Epidemiology, School of Public Health, University of São Paulo (FSP-USP), São Paulo 01246-904, Brazil
7. Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Durham, NC 27710, USA