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Kurita GP, Kaasa S, Sjøgren P; European Palliative Care Research Collaborative (EPCRC).Kurita GP, et al. Among authors: sjogren p.Palliat Med. 2011 Jul;25(5):560-77. doi: 10.1177/0269216310386279.Palliat Med. 2011.PMID: 21708860Review.