Letter to the editor

1. da Silva, S.L.
2. Amaral, J.T.
3. Ribeiro, M.
4. Sebastião, E.E.
5. Vargas, C.
6. de Lima Franzen, F.
7. Schneider, G.
8. Lorenzo, J.M.
9. Fries, L.L.M.
10. Cichoski, A.J.
11. Campagnol, P.C.B.