Association between gastroesophageal reflux disease and depression disorder

Background: This study will systematically synthesize the evidence on the potential association between gastroesophageal reflux disease (GERD) and depression disorder (DD). Methods: We will search the following electronic bibliographic databases: PubMed/MEDLINE, Embase, Cochrane Library, Web of Science, the Chinese Bio Medical Literature Database, China National Knowledge Infrastructure (CNKI), the China Science and Technology Journal database...