RT Journal Article SR Electronic T1 Effects of Levodopa loaded chitosan nanoparticles on cell viability and caspase-3 expression in PC12 neural like cells JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 281 OP 283 VO 18 IS 3 A1 Sadigh-Eteghad, Saeed A1 Talebi, Mahnaz A1 Farhoudi, Mehdi A1 Mahmoudi, Javad A1 Reyhani, Bahram YR 2013 UL http://nsj.org.sa/content/18/3/281.abstract AB