Structured management strategy based on the Gastro-oesophageal Reflux Disease (GERD) Questionnaire (GerdQ) vs. usual primary care for GERD: Pooled analysis of five cluster-randomised European studies

1. Ponce, J.
2. Garrigues, V.
3. Agréus, L.
4. Tabaglio, E.
5. Gschwantler, M.
6. Guallar, E.
7. Tafalla, M.
8. Nuevo, J.
9. Hatlebakk, J.