552,030 WANG YU-HUI Urolithiasis formation and fragmentation : urea- se-induced crystallisation and piezo-electric shock wave fragmentation : a clinical study : [akademisk avn.] / by Yu-Hui Wang ; [Department of Urology Uni­ versity of Göteborg]. - Göteborg : University, 1994. - 58, [37] s. : il., wykr. ; 24 cm Zawiera 5 prac wspölaut. ISBN 91-628-1125-8