Abbasvali, Maryam, Esmaeili Koutamehr, Mahmoud, Moshtaghi, Hamdollah, Eskandari, Mohammad. Antibacterial activity of acetonic, ethanolic and methanolic olive leaf extracts of four Iranian cultivars against  Escherichia coli. Journal of Food Microbiology. 2015;2(2):67-77. doi: