[1] Natl Inst Sci & Technol Hlth Technol Assessment IA, Porto Alegre, Brazil
[2] Fed Univ Rio Grande, Grad Program Cardiovasc Sci, Porto Alegre, Brazil
[3] Pontificia Univ Catol Rio Grande, Sch Technol, Porto Alegre, Brazil
[4] Fed Univ Rio Grande, Grad Program Epidemiol, Porto Alegre, Brazil
[5] Brigham & Womens Hosp, Harvard Med Sch, Boston, MA USA
[6] Nova Sch Business & Econ, Carcavelos, Portugal
[7] Nova Univ Lisbon, Nova Med Sch, Lisbon, Portugal
[8] Natl Inst Sci & Technol Hlth Technol Assessment IA, 2350 Ramiro Barcelos St, Porto Alegre, Brazil