Inhibitory Effects of Lignans and Flavonoids in Saiboku-To, a Herbal Medicine for Bronchial Asthma, on the Release of Leukotrienes from Human Polymorphonuclear Leukocytes - Homma*, Masato; Minami, Mana; Taniguchi, Chizu; Oka, Kitaro; Morita, Sonoko; Niitsuma, Tomoyuki; Hayashi, Toru (Planta Medica, 2000)