[1] Univ Fed Rio Grande do Sul, Postgrad Program Med Sci Endocrinol, Porto Alegre, RS, Brazil
[2] Pontificia Univ Catolica Rio Grande do Sul, Hosp Sao Lucas, Internal Med Dept, Porto Alegre, RS, Brazil
[3] Pontificia Univ Catolica Rio Grande do Sul, Sch Med, Porto Alegre, RS, Brazil
[4] Pontificia Univ Catolica Rio Grande do Sul, Postgrad Program Med & Hlth Sci, Porto Alegre, RS, Brazil
[5] Univ Fed Rio Grande do Sul, Sch Med, Porto Alegre, RS, Brazil
[6] Hosp Clin Porto Alegre, Endocrinol Div, Porto Alegre, RS, Brazil
[7] Natl Inst Sci & Technol Hlth Technol Assessment I, Porto Alegre, RS, Brazil
[8] HCPA, Hosp Clin Porto Alegre, Porto Alegre, RS, Brazil
[9] Hosp Sao Lucas PUCRS, Porto Alegre, RS, Brazil