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Khalkhali-Ellis Z, Seftor EA, Nieva DR, Seftor RE, Samaha HA, Bultman L, De Larco JE, Ince A, Moore TL, Hendrix MJ.Khalkhali-Ellis Z, et al. Among authors: seftor re, seftor ea.J Rheumatol. 1997 Dec;24(12):2451-60.J Rheumatol. 1997.PMID: 9415657