Use of ultrasound to enhance nonviral lung gene transfer in vivo - Xenariou, S; Griesenbach, U; Liang, H-D; Zhu, J; Farley, R; Somerton, L; Singh, C; Jeffery, PK; Ferrari, S; Scheule, RK; Cheng, SH; Geddes, DM; et al. (GENE THERAPY, 2007)