DP Steensma, JS Caudill, A Pardanani, RF McClure, TL Lasho, A Tefferi. MPL W515 and JAK2 V617 mutation analysis in patients with refractory anemia with ringed sideroblasts and an elevated platelet count. Haematologica 2006;91(12_Suppl):ECR57-ECR57; https://doi.org/10.3324/%x.