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Evans N, Meñaca A, Andrew EV, Koffman J, Harding R, Higginson IJ, Pool R, Gysels M; PRISMA.Evans N, et al. Among authors: koffman j.J Pain Symptom Manage. 2012 Feb;43(2):261-86. doi: 10.1016/j.jpainsymman.2011.04.012. Epub 2011 Oct 17.J Pain Symptom Manage. 2012.PMID: 22001070Free article.Review.
Koffman J, Higginson IJ.Koffman J, et al.J Public Health Med. 2000 Jun;22(2):245-6. doi: 10.1093/pubmed/22.2.245.J Public Health Med. 2000.PMID: 10912567No abstract available.