Cooper Cooper N N Hill Hill Q Q Grainger Grainger J J Westwod Westwod J J Bradbury Bradbury C C Provan Provan D D Tapering and discontinuation of thrombopoietin receptor agonist therapy in patients with immune thrombocytopenia: Results from a modified Delphi Panel Tapering and discontinuation of thrombopoietin receptor agonist therapy in patients with immune thrombocytopenia: Results from a modified Delphi Panel Acta Haematol Acta Haematol 2021 2021 144 144 418 418 426 426 10.1159/000510676 10.1159/000510676 33789275 33789275. This evidence concerns the gene MPL and autoimmune thrombocytopenic purpura.