@article{article69f06798,
title   = {Does Propolis Contain Tannins?},
author = {Mayworm, Marco A. S and Lima, Carolina A and Tomba, Augusto C. B and Fernandes-Silva, Caroline C and Salatino, Maria Luiza Faria and Salatino, Antonio},
year = {2014},
doi = {10.1155/2014/613647},
journal   = {Evidence-Based Complementary and Alternative Medicine}
}