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Billings JA, Ferris FD, Macdonald N, Von Gunten C; Hospice Home Care Working Group.Billings JA, et al. Among authors: ferris fd.J Palliat Med. 2001 Fall;4(3):361-71. doi: 10.1089/109662101753123986.J Palliat Med. 2001.PMID: 11596548Review.