https://www.selleckchem.com/pr....oducts/beta-nicotina
BACKGROUND/AIMS Serious gastrointestinal (GI) pathologies are common in older adults compared to young adults (≤40 years). Data on the diagnostic yield (DY) of colonoscopy in young adults with lower GI symptoms are lacking. We aimed to evaluate the overall DY of colonoscopy; and the DY stratified by the presence or absence of bright red blood per rectum (BRBPR) in young adults ≤40 years. METHODS We reviewed diagnostic colonoscopies performed in young adults by 18 gastroenterologists at 2 different institutions f