title: Erratum.
abstract: In "Ractopamine Residues in Urine, Plasma and Hair of Cattle During and After Treatment" by Tang et al. [Journal of Analytical Toxicology (2014) 38: 149-154], there were errors in referenced information from papers by Smith and Shelver (8) and Pleadin et al. (12,14) in the Introduction and Discussion sections. The dosage concentration from the Smith and Shelver paper was incorrect. The type of animal hair from the Pleadin et al. papers was incorrect. The corrected Introduction and Discussion sections are reproduced here. The authors regret the errors.
authors: State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, NO.2 Yuan Ming Yuan West Road, Beijing, 100193, China zhjmxms@sina.com.
authors: Junmin
authors: J
authors: Zhang