title: The importance of subgrouping refractory NERD patients according to esophageal pH-impedance testing.
authors.forename: Edoardo
authors.initials: E
authors.lastname: Savarino
authors.forename: Maria
authors.initials: M
authors.lastname: Giacchino
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Savarino
mesh_terms: D004947:Esophagus / Q000503:physiopathology*; D005260:Female; D018662:Fundoplication / Q000379:methods*; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008297:Male