Storti F, Santambrogio S, Crowther LM, Otto T, Abreu-Rodríguez I, Kaufmann M, Hu C-J, Dame C, Fandrey J, Wenger RH, Hoogewijs D. A novel distal upstream hypoxia response element regulating oxygen-dependent erythropoietin gene expression. Haematologica 2014; 99(4):e45-e48; https://doi.org/10.3324/haematol.2013.102707.