**Author details**

Fabio Roberto D'Avila1 \* and Theodoro Balducci De Oliveira2

1 Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil

2 Pontifícia Universidade Católica do Rio Grande do Sul, São Paulo, Brazil

\*Address all correspondence to: davila@dob.adv.br

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