[Preparation and in vitro drug release performance of morphine-loaded chitosan microspheres].
Li
Ya-lan
YL
Department of Anesthesiology, First Affiliated Hospital, Jinan University, Guangzhou, China.
Liao
Jin-hua
JH
Hu
Dong-hua
DH
Chen
Wen-bin
WB
Zhou
Chang-ren
CR
Lu
Lu
L
Rong
Jan-hua
JH