Vijayan Venugopal and Jayachandran 2012. Transdermal Delivery of Insulin by Biodegradable Chitosan Nanoparticles: Exvivo and In vivo Studies: Transdermal delivery of insulin. Iranian Journal of Pharmaceutical Sciences. 8, 1 (Jan. 2012), 315–321. DOI:https://doi.org/10.22037/ijps.v8.41002.