Food safety challenges in traditional pork value chains and policy engagement in Vietnam and Laos - Unger, Fred; Phuc Pham Duc; Hung, P.V.; Vannaphone, P.; Sinh Dang-Xuan; Hanh, T.T.T.; Hung Nguyen-Viet; Binot, A.; Narnon, L.; Grace, Delia (International Livestock Research Institute, 2018)