Brazilian Journal of Pharmaceutical Sciences; Vol. 49 No. 2 (2013); 373-380 Brazilian Journal of Pharmaceutical Sciences; Vol. 49 Núm. 2 (2013); 373-380 Brazilian Journal of Pharmaceutical Sciences; v. 49 n. 2 (2013); 373-380 Brazilian Journal of Pharmaceutical Sciences Universidade de São Paulo (USP) instacron:USP Brazilian Journal of Pharmaceutical Sciences, Vol 49, Iss 2, Pp 373-380 (2013) Brazilian Journal of Pharmaceutical Sciences, Volume: 49, Issue: 2, Pages: 373-380, Published: JUN 2013