Abhishek, Abhishek, Grainge, Matthew, Card, Tim, Williams, Hywel C, Taal, Maarten W, Aithal, Guruprasad P, Fox, Christopher P, Mallen, Christian D, Stevenson, Matthew D, Nakafero, Georgina, Riley, Richard, "Risk-stratified monitoring for sulfasalazine toxicity: prognostic model development and validation", RMD Open, 2024