Monitoring for 5-aminosalicylate nephrotoxicity in adults with inflammatory bowel disease: prognostic model development and validation using data from the Clinical Practice Research Datalink. - Abhishek A; Nakafero G; Card T; Taal MW; Grainge MJ; Aithal GP; Mallen CD; Stevenson MD; Riley RD (BMJ open gastroenterology, 2025)