"U. L. B. Jayasinghe,S. Ratnayake,D. Ratnayake,N. Hara,Y. Fujimoto","Dihydrochalcones with radical scavenging properties from the leaves of Syzygium jambos",,"Nat. Prod. Res.",,"Vol. 21","No. 6","pp. 551-554",2007,May