title: Reply: To PMID 23978500.
authors: Duke Clinical Research Institute, Duke University, Durham, North Carolina.
authors: Ziad F
authors: ZF
authors: Gellad
authors: Duke Clinical Research Institute, Duke University, Durham, North Carolina.
authors: Javad
authors: J
authors: Taheri
mesh_terms: D004724:Endoscopy / Q000379:methods* / Q000592:standards*; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006302:Health Services Research / Q000379:methods*; D006801:Humans