Olde Hartman, T.C.

patient gallstone biliary pain symptom gallbladder stones stone gallbladder biliary cholecystectomy disease group relief study inclusion gallbladder stone disease follow-up presence 1 year ultrasound ultrasound examination patient groups table practice gallstone disease symptom relief rates examination 1- year follow-up control group suspicion health status status questionnaire health rotterdam bile duct stones level control relief rates relief rate difference number berger british definition journal result m y berger b 2 test practitioner department velden reflux oesophagitis netherland bowel syndrome university hospital rotterdam indication food intake treatment m bohnen prevalence characteristic hartman bohnen ratio analysis control groups syndrome surgery regression analysis roma 88 team report intake bowel relationship likelihood ratios british journal hospital radiology gastroenterol trial