Kuipers GK, Slotman BJ, Reitsma-Wijker CA, van Andel RJ, Poldervaart HA, Lafleur MVM. Influence of anoxia on the induction of mutations by phenylalanine radicals during γ-irradiation of plasmid DNA in aqueous solution. Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis. 2004 Dec;568(2):171–7. doi: 10.1016/j.mrfmmm.2004.08.005.