C. F. Caskey, Stieger-Vanegas, S. M., Qin, S., Dayton, P. A., and Ferrara, K. W.,
“Direct observations of ultrasound microbubble contrast agent interaction with the microvessel wall.”,
The Journal of the Acoustical Society of America, vol. 122, no. 2, pp. 1191-200, 2007.