Isoflavonoids from Pueraria mirifica and their Estrogenic Activity - Chansakaow, Sunee; Ishikawa, Tsutomu; Sekine (née Yoshizawa), Keiko; Okada, Mineaki; Higuchi, Yoshihiro; Kudo, Momoe; Chaichantipyuth, Chaiyo (Planta Medica, 2000)