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Piezoelectric lithotripsy of calcified gallstones results and sixmonth follow up.
Joon Koo Han, Byung Ihn Choi, Yong Bum Yoon, Yong Hyun Park, Chu Wan Kim, Man Chung Han
J Korean Soc Med Ultrasound. 1992;11(1):18-24. Published online January 1, 2001
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