title: Author Reply.
authors.affiliation: HealthEast Kidney Stone Institute, HealthEast Care System, St. Paul, MN, USA.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Portis
mesh_terms: D017281:Cost of Illness; D004636:Emergency Service, Hospital / Q000191:economics*; D004724:Endoscopy / Q000379:methods*; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D008297:Male; D056844:Renal Colic / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000191:economics*