Psychometric validation of the German translation of the Gastrointestinal Symptom Rating Scale (GSRS) and Quality of Life in Reflux and Dyspepsia (QOLRAD) questionnaire in patients with reflux disease
Kulich, Malfertheiner Peter, Madisch Ahmed, Labenz Joachim, Bayerdörffer Ekkehard, Miehlke Stephan, Carlsson Jonas, Wiklund