title: Percutaneous nephrolithotomy: why do we use rigid dilators?
authors.affiliation: Bristol Urological Institute, North Bristol NHS Trust, Bristol, England. vkumar2705@yahoo.co.uk
authors.forename: Vivekanandan
authors.initials: V
authors.lastname: Kumar
authors.forename: Francis X
authors.initials: FX
authors.lastname: Keeley
mesh_terms: D000818:Animals; D002404:Catheterization / Q000295:instrumentation*; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery; D009403:Nephrostomy, Percutaneous / Q000295:instrumentation*; D013552:Swine