K.W.J.C. Kariyawasam, P.D.N.N. Sirisena, H.L.C. Nanayakkara, W.D. Ratnasooriya, S.M. Handunnetti. Vitex negundo L. leaf extract inhibits IL-6 and TNF-α secretion and phagocytosis in human leukocytes, Journal of Herbal Medicine, 2020, doi:https://doi.org/10.1016/ j.hermed. 2020.100341