Prenylflavonoids: a new class of non-steroidal phytoestrogen (Part 2). Estrogenic effects of 8-isopentenylnaringenin on bone metabolism - Miyamoto,M.; Matsushita,Y.; Kiyokawa,A.; Fukuda,C.; Iijima,Y.; Sugano,M.; Akiyama,T. (Planta Med, 1998)