Ultra-Processed Food Intake, Cumulative Antibiotic Exposure, and Markers of Gut Inflammation as Risk Factors for Early-Onset Colorectal Cancer:A Matched Case-Control Study in a Resource-Limited Community-Academic Health System - Basit Ur Rehman; Fareed Ullah; Ahmed Shahbaz; Jawad Ahmed (Pakistan Journal of Gastroenterology, 2026)