Kris P. Jeremy, Zoe E. Plummer, David J. Head, Tracey E. Madgett, Kelly L. Sanders, Amanda Wallington, Jill R. Storry, Florinda Gilsanz, Jean Delaunay, Neil D. Avent. 4.1R-deficient human red blood cells have altered phosphatidylserine exposure pathways and are deficient in CD44 and CD47 glycoproteins. Haematologica 2009;94(10):1354-1361; https://doi.org/10.3324/haematol.2009.006585.