Dear friends, we are nendig the following chapter: McClellan RO. Chapter 1 - Concepts in Veterinary Toxicology A2 - Gupta, Ramesh C. In: Veterinary Toxicology (Third Edition); 2018. p. 3-36. https://www.sciencedirect.com/science/article/pii/B9780128114100000015 Thank´s. Carlos Alberto Castañeda T. | Bibliotecólogo Asistente Universidad CES | Calle 10A # 22-04 | Medellín, Colombia Tel: (57) (4) 444 0555 Ext. 1132 | Fax: (57) (4) 266 6046 [log in to unmask]<mailto:[log in to unmask]> | www.ces.edu.co<http://www.ces.edu.co/> [http://www.ces.edu.co/correo/pie_correo.gif]