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1992; see INTERFERON TYPE I 1983-1991, INTERFERON ALPHA-1 was indexed under INTERFERON-ALPHA 2001-2011, INTERFERON-ALPHA 2 was indexed under INTERFERON-ALPHA 1997-2011, INTERFERON ALPHA4 was indexed under INTERFERON-ALPHA 1993-2001, INTERFERON ALPHA5 was indexed under INTERFERON-ALPHA 1996-2001
History Note
1992; for INTERFERON, LYMPHOBLAST and INTERFERON, LEUKOCYTE use INTERFERON TYPE I 1989-1991