00410nas a2200145   4500000000100000008004100001100001400042700001500056700001500071700002200086700001400108700001800122245011000140022001400250       2020                            d1 aJ. Houwen1 aA. Egberts1 aA. de Boer1 aE. van Maarseveen1 aR. Houwen1 aA. Lalmohamed00aInfluence of allopurinol on thiopurine associated toxicity: A retrospective population-based cohort study  a0306-5251