title: 'Stones, gas and gaiters': gas-filled matrix calculi of the renal pelvis.
authors.affiliation: Norfolk and Norwich Hospital NHS Trust, UK.
authors.forename: A D
authors.initials: AD
authors.lastname: Simpson
authors.forename: E R
authors.initials: ER
authors.lastname: Rytina
authors.forename: R Y
authors.initials: RY
authors.lastname: Ball
authors.forename: C G
authors.initials: CG
authors.lastname: Gaches
mesh_terms: D000368:Aged; D004927:Escherichia coli Infections / Q000150:complications; D005740:Gases; D006801:Humans; D007669:Kidney Calculi / Q000382:microbiology / Q000473:pathology* / Q000601:surgery; D008297:Male; D009392:Nephrectomy / Q000379:methods; D014552:Urinary Tract Infections / Q000209:etiology
chemical_list: D005740:Gases