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ESWL treatment, outcomes, and costs according to shock wave frequency
Group I had received 2,000-3,000 shocks at a rate of 60 shocks/min, and group II had received 2,000-3,000 shocks at a rate of 120 shocks/min, EWSL, extracorporeal shock wave lithotripsy, Lt: left, Rt: right, VAS: visual analogue scale
