“ Retinoic Acid Liposome-Hydrogel: Preparation, Penetration through Mouse Skin and Induction of F9 Mouse Teratocarcinoma Stem Cells Differentiation ”. Brazilian Journal of Pharmaceutical Sciences, vol. 51, no. 3, Sept. 2015, pp. 541-9, https://doi.org/10.1590/S1984-82502015000300006.