[1] Univ Fed Fluminense, Dept Surg, Div Thorac Surg, BR-24020006 Niteroi, RJ, Brazil
[2] Univ Fed Fluminense, Dept Internal Med, BR-24020006 Niteroi, RJ, Brazil
[3] Univ Fed Fluminense, Dept Morphol, BR-24020006 Niteroi, RJ, Brazil
[4] Rio de Janeiro State Univ UERJ, Rio De Janeiro, RJ, Brazil