Reliability and validity of the Gastrointestinal Symptom Rating Scale (GSRS) and Quality of Life in Reflux and Dyspepsia (QOLRAD) questionnaire in dyspepsia: A six-country study
Titel:
Reliability and validity of the Gastrointestinal Symptom Rating Scale (GSRS) and Quality of Life in Reflux and Dyspepsia (QOLRAD) questionnaire in dyspepsia: A six-country study
Auteur:
Kulich, Károly R Madisch, Ahmed Pacini, Franco Piqué, Jose M Regula, Jaroslaw Van Rensburg, Christo J Újszászy, László Carlsson, Jonas Halling, Katarina Wiklund, Ingela K