Determination of ractopamine residue in tissues and urine from pig fed meat and bone meal - Aroeira, Carolina N; Feddern, Vivian; Gressler, Vanessa; Molognoni, Luciano; Daguer, Heitor; Dalla Costa, Osmar A; Lima, Gustavo J. M. M. de; Contreras-Castillo, Carmen Josefina (Food Additives and Contaminants. Part A: Chemistry, Analysis, Control, Exposure & Risk Assessment, 2019)