Singers Sørensen, B., Overgaard, J. and Bassler, N. (2013) “In response to the commentary ‘Particle species dependence of cell survival relative biological effectiveness: Evident and not negligible’ by Thomas Friedrich, Marco Durante & Michael Scholz”, Acta Oncologica, 52(3), p. 591. doi: 10.3109/0284186X.2013.767985.