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Petford N, Wertheim D, Miller JA.Petford N, et al.J Microsc. 2005 Mar;217(Pt 3):179-83. doi: 10.1111/j.1365-2818.2005.01444.x.J Microsc. 2005.PMID: 15725119
Wertheim D, Gillmore G, Gill I, Petford N.Wertheim D, et al. Among authors: petford n.Sci Total Environ. 2017 Jul 15;590-591:838-842. doi: 10.1016/j.scitotenv.2017.02.230. Epub 2017 Mar 9.Sci Total Environ. 2017.PMID: 28284651
Petford N, Mirhadizadeh S.Petford N, et al.R Soc Open Sci. 2017 May 31;4(5):161083. doi: 10.1098/rsos.161083. eCollection 2017 May.R Soc Open Sci. 2017.PMID: 28573002Free PMC article.
Petford N, Cruden AR, McCaffrey KJ, Vigneresse JL.Petford N, et al.Nature. 2000 Dec 7;408(6813):669-73. doi: 10.1038/35047000.Nature. 2000.PMID: 11130061