AMERICAN GASTROENTEROLOGICAL ASSOCIATION Bethesda, MD (Feb. 21, 2023) — In new evidence-based guidelines, the American Gastroenterological Association (AGA) recommends non-invasive biomarkers as a first-line strategy for monitoring many patients with ulcerative colitis (UC). These guidelines were published today in Gastroenterology. The AGA guidelines outline use cases for three biomarkers that provide accurate insights into ulcerative colitis disease...