title: The difficult ureter: what is the incidence of pre-stenting?
authors.affiliation: South Coast Stone Centre, Department of Urology, Queen Alexandra Hospital, Portsmouth, UK. richcetti@hotmail.com
authors.forename: R J
authors.initials: RJ
authors.lastname: Cetti
authors.forename: S
authors.initials: S
authors.lastname: Biers
authors.forename: S R
authors.initials: SR
authors.lastname: Keoghane