Identification of (+)-gallocatechin as a bio-antimutagenic compound in Psidium guava leaves. Tomoaki Matsuo, Norifumi Hanamure, Kayoko Shimoi, Yoshiyuki Nakamura and Isao Tomita, Phytochemistry, Volume 36, Issue 4, July 1994, Pages 1027-1029, DOI:10.1016/S0031-9422(00)90484-9
Polyphenols of the leaves of psidium guava—quercetin, guaijaverin, leucocyanidin and amritoside. T.R. Seshadri and Krishna Vasishta, Phytochemistry, Volume 4, Issue 6, 1965, Pages 989-992, DOI:10.1016/S0031-9422(00)86281-0