A Commentary on “Chitosan, a Natural Polymer, is an Excellent Sustained-Release Carrier for Amide Local Anesthetics” [Letter]

Yanlin Wu,1,* Junhao Fang,2,* Ying Jian3 1Clinical Medicine Grade 2021, School of Clinical Medicine, Hangzhou Normal University, Hangzhou, 311121, People’s Republic of China; 2Stomatology Grade 2022, School of Clinical Medicine, Hangzhou Normal University, Hangzhou, 311121, People’s Republic of China; 3Department of Cardiology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, 310000, People’s Republic of China*These authors contributed equally to this workCorrespondence: Ying Jian, Email [email protected]