Dr. Ignacio Alvarez Gomez de Segura PhD EBVS® European Specialist in Veterinary Anaesthesia and Analgesia Member of European College of Veterinary Anaesthesia and Analgesia and ECLAM iagsegura@vet.ucm.es *34 () 91 3943858 Universidad Complutense de Madrid Facultad de Veterinaria. HCVC Avda. Puerta de Hierro Madrid 28040 Spain