A.A. Yas. 2016. “Preparation and Characterization of L – Dopa Loaded Chitosan – Based Dry Powder: Rescue / Continuous Supplement in Parkinson’s Disease via Inhalation”. World Journal of Pharmaceutical Sciences 4 (1):23-36. https://wjpsonline.com/index.php/wjps/article/view/preparation-levodopa-loaded-chitosan-parkinson.