Clinical and Biomedical Research, Vol 35, Iss 1 (2015) Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS Clinical & Biomedical Research; Vol. 35 No. 1 (2015) Clinical and Biomedical Research; v. 35 n. 1 (2015) Clinical and Biomedical Research