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The article needs significant cleaning and retooling. Specifically, the "Further Reading" section is a jumbled list of journal article references.
Ultrasound does not break up kidney stones. Extracorporeal shock-wave lithotripsy uses shock waves, not sound waves, for lithotripsy. See Wikipedia page on shock wave lithotripsy for explanation. — Preceding unsigned comment added by 220.127.116.11 (talk) 14:44, 15 May 2017 (UTC)