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Head B, Ritchie CS, Scharfenberger J, Keeney C, Hermann C, Pfeifer M.Head B, et al.J Ky Med Assoc. 2004 Feb;102(2):57-65.J Ky Med Assoc. 2004.PMID: 15004936
Pfeifer MP, Ritchie C, Scharfenberger J, Keeney C, Hermann C, Berwick M, Head B.Pfeifer MP, et al. Among authors: head b.Lippincotts Case Manag. 2006 Nov-Dec;11(6):318-26. doi: 10.1097/00129234-200611000-00007.Lippincotts Case Manag. 2006.PMID: 17135876
Head BA, Cantrell M, Pfeifer M.Head BA, et al.Prof Case Manag. 2009 Jan-Feb;14(1):39-45. doi: 10.1097/01.PCAMA.0000343146.81635.38.Prof Case Manag. 2009.PMID: 19092600