title: How Useful the Combined Impedance-pH Monitoring Is for Evaluation of Refractory Reflux Symptoms?: Author's Reply.
authors.affiliation: Hepatogastroenterology Unit, 2nd Department of Internal Medicine - Propaedeutic, Attikon University General Hospital, Athens Medical School, Athens, Greece.
authors.forename: Georgios
authors.initials: G
authors.lastname: Karamanolis