Cost-effectiveness of estracoporeal shock wave lithotripsy vs percutaneous nephrolithotomy in the management of lower pole nephrolithiasis : a study of local figures / Antonio S. Reyes III [and three others] In: Philippine Journal of Urology, 12012 vol. 22 (1) : 1-5. Subjects--Topical Terms: Nephrolithiasis--therapyLithotripsyNephrolithotomy, Percutaneous