@article{article1b724a97,
title   = {Supercritical solvent impregnation of ophthalmic drugs on chitosan derivatives},
author = {Braga, Mara Elga Medeiros and Pato, Maria Teresa Vaz and Silva, Hélio Santa Rosa Costa and Ferreira, Elizabeth Igne and Gil, Maria Helena and Duarte, Catarina M. M. and Sousa, Hermínio C. de},
year = {2008},
doi = {10.1016/j.supflu.2007.10.002},
journal   = {Journal of Supercritical Fluids}
}