title: [Long-term pH-metry and manometry: methods and value in the differential diagnosis of retrosternal pain].
mesh_terms: D003937:Diagnosis, Differential; D005745:Gastric Acidity Determination; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans; D008134:Long-Term Care; D008365:Manometry
vernacular_title: Langzeit-pH-Metrie und Manometrie: Methoden und Stellenwert in der Differentialdiagnose des Retrosternalschmerzes.