00607nas a2200193   4500000000100000008004100001100001600042700001500058700001200073700001200085700001400097700001300111700001500124700001100139700001400150700001600164245021900180022001400399       2021                            d1 aG. Nakafero1 aM. Grainge1 aT. Card1 aM. Taal1 aG. Aithal1 aW. Zhang1 aM. Doherty1 aC. Fox1 aC. Mallen1 aA. Abhishek00aDevelopment and validation of a prognostic model for leflunomide discontinuation with abnormal blood-tests during long-term treatment: cohort study using data from Clinical Practice Research Datalink Gold and Aurum  a1462-0324