Transrenal ureteral occlusion with Gianturco coils and gelatin sponge Gaylord, G.M.; Johnsrude, I.S. Radiology 172(3 Pt 2): 1047-1048 1989 0033-8419 10.1148/172.3.1047 https://eurekamag.com/research/007/964/007964604.php