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We present a proper off-mass-shell extension of the chiral reduction formula(CHRF) proposed by Yamagishi and Zaned. This is achieved by rewriting the CHRFin a manifestly consistent form with the conventional LSZ reduction formula.Comment: v.2. 16 pages; v.3. 11 pages, Version to apper in Prog. Theor. Phy

Off-Shell Extension of the Chiral Reduction Formula