Overtoom TT, Vijverberg PL, van Es HW, van Selm S, van Heesewijk HP (2009), "Treatment of Ureteropelvic Junction Obstruction Using a Detachable Inflatable Stent: Initial Experience", American Journal of Roentgenology, 192 (4): 1103–1106, doi:10.2214/AJR.08.1296, PMID19304721
Overtoom TT, Vijverberg PL, van Es HW, van Selm S, van Heesewijk HP (2009), "Treatment of Ureteropelvic Junction Obstruction Using a Detachable Inflatable Stent: Initial Experience", American Journal of Roentgenology, 192 (4): 1103–1106, doi:10.2214/AJR.08.1296, PMID19304721