Statement 20: Proton pump inhibitor therapy is recommended to treat non-cardiac chest pain in patients with concomitant typical gastroesophageal reflux disease symptoms.      Level of evidence: moderate      Strength of recommendation: strong      Experts’ opinions: agree strongly (46.7%), agree with some reservations (51.1%), undecided (2.2%), disagree (0.0%), and disagree strongly (0.0%)