Elliott, J., Surprenant, A., Marelli-Berg, F., Cooper, J., Cassady-Cain, R., Wooding, C., …Higgins, C. (2005). Membrane phosphatidylserine distribution as a non-apoptotic signalling mechanism in lymphocytes. Nature Cell Biology, 7(8), 808-U76. https://doi.org/10.1038/ncb1279