The endocrine activities of 8-prenylnaringenin and related hop (Humulus lupulus L.) flavonoids - Milligan, S R; Kalita, J C; Pocock, V; Kauter, V VD; Stevens, J F; Deinzer, M L; Rong, H; Keukeleire, D D (J Clin Endocrinol Metab, 2000)