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McIntosh MP, Charman WN, Campbell M, Porter CJ.McIntosh MP, et al.J Control Release. 2004 Mar 5;95(2):275-89. doi: 10.1016/j.jconrel.2003.12.003.J Control Release. 2004.PMID: 14980776
Pouton CW, Porter CJ.Pouton CW, et al.Adv Drug Deliv Rev. 2008 Mar 17;60(6):625-37. doi: 10.1016/j.addr.2007.10.010. Epub 2007 Nov 4.Adv Drug Deliv Rev. 2008.PMID: 18068260Review.