Zhao Y-Z*, Lu C-T, Fu H-X, Li XK, Zhou Z-C, Zhao G-T, Tian J-L, Gao H-S, Jiang Y-N, Hu S-P et al: Phospholipid-based ultrasonic microbubbles for loading protein and ultrasound-triggered release. Drug Development and Industrial Pharmacy. 2009, 35(9): 1121-1127. (IF=2.101)