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Burgess SA, Bouchard MB, Yuan B, Hillman EM.Burgess SA, et al. Among authors: hillman em.Opt Lett. 2008 Nov 15;33(22):2710-2. doi: 10.1364/ol.33.002710.Opt Lett. 2008.PMID: 19015717Free PMC article.
Grosberg LE, Chen BR, Hillman EM.Grosberg LE, et al. Among authors: hillman em.Opt Lett. 2012 Jul 15;37(14):2967-9. doi: 10.1364/OL.37.002967.Opt Lett. 2012.PMID: 22825194Free PMC article.