[1] Univ Sao Paulo, Dept Internal Med, Sch Med, BR-05508 Sao Paulo, Brazil
[2] Univ Sao Paulo, Hosp Univ, Div Internal Med, BR-05508 Sao Paulo, Brazil
[3] Univ Sao Paulo, Sch Publ Hlth, Dept Nutr, BR-05508 Sao Paulo, Brazil
[4] Brigham & Womens Hosp, Dept Med, Div Prevent Med, Boston, MA 02215 USA
[5] Harvard Univ, Sch Med, Boston, MA 02215 USA