Walnut (Juglans regia L.) leaves: phenolic compounds, antibacterial activity and antioxidant potential of different cultivars. - Pereira,J.A.; Oliveira,I.; Sousa,A.; Valentao,P.; Andrade,P.B.; Ferreira,I.C.; Ferreres,F.; Bento,A.; Seabra,R.; Estevinho,L. (Food Chem Toxicol, 2007)