TY - RPRT TI - Imaging microbubbles and tissues using a linear focussed scanner operating at 20 MHz: possible implications for the detection of cavitation thresholds. AU - D J Watmough AU - H M Davies AU - K M Quan AU - R Wytch AU - A R Williams PY - 1991 DO - 10.1016/0041-624x(91)90028-7 UR - https://pubmed.ncbi.nlm.nih.gov/2058050/ ID - 2058050 ER -