Performance of the Medical Research Council (MRC) and the Leukemia Research Foundation (LRF) score in predicting survival benefit with hypomethylating agent use in patients with relapsed or refractory acute myeloid leukemia. Issue 1 (2nd January 2019) - Stahl, Maximilian; DeVeaux, Michelle; Montesinos, Pau; Itzykson, Raphaël; Ritchie, Ellen K.; Sekeres, Mikkael A.; Barnard, John; Podoltsev, Nikolai A.; Brunner, Andrew; Komrokji, Rami S.; Bhatt, Vijaya R.; Al-Kali, Aref; et al.