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. 2021 May 20;20:15330338211011965. doi: 10.1177/15330338211011965

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© The Author(s) 2021

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Sound waves and ultrasound parameters. (A) In ultrasound (US) field, different frequencies are used in water or different biological targets for different purposes. (B) Depending on applications, appropriate US pulse parameters are required. (C) In focused ultrasound (FUS), the stimulation parameters are easily adjusted by using a function generator and the focuses by an oscilloscope.