Medicinal foodstuffs. XXXI. Structures of new aromatic constituents and inhibitors of degranulation in RBL-2H3 cells from a Japanese folk medicine, the stem bark of Acer nikoense. - Morikawa,T.; Tao,J.; Ueda,K.; Matsuda,H.; Yoshikawa,M. (Chem Pharm Bull, 2003)