materials and methods the development of the trauma registry form began in february 2013. the variables were finalized by a team consisting of general and trauma surgeons, specialists in emergency medicine, orthopedists, neurosurgeons, and public health professionals who have special interest in trauma research. the scale was sent to 10 specialists for validation. results after assessing the sc...

background symptoms of gastro-esophageal reflux disease (gerd) affect health-related quality of life (hrqol). when a questionnaire is translated into a new language, linguistic validation is necessary, yet insufficient, unless the psychometric characteristics have been verified. the aim of this study is to document the translation and psychometric validation of the persian translation of the qu...