Yoshihara, E. et al. 2013. Anthelmintic effect of condensed tannins in gastrointestinal nematodes of sheep (Ovis aries). Semina: Ciências Agrárias. 34, 6Supl2 (Dec. 2013), 3935–3950. DOI:https://doi.org/10.5433/1679-0359.2013v34n6Supl2p3935.