Antioxidant activity of Iranian Echium amoenum Fisch & C.A. Mey flower decoction in humans: A cross-sectional before/after clinical trial - Ranjbar, A; Khorami, S; Safarabadi, M; Shahmoradi, A; Malekirad, A A; Vakilian, K; Mandegary, A; Abdollahi, M (Evid Based Complement Alternat Med, 2006)