introduction: dyspepsia, gastroesophageal reflux disease (gerd) and irritable bowel syndrome (ibs) are the most common gastrointestinal diseases. their prevalence is 18-30%, 25-30% and 10-15% in western communities and 8-14%, 3-7% and 3-5% in eastern countries, respectively. there is no adequate data about their prevalence in our country. the aim of this study is to determine the prevalence of ...
