1 Direcção Geral de Alimentação e Veterinária (DGAV), Largo da Academia Nacional de Belas Artes 2, 1249-105 Lisbon, Portugal.
2 Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
3 Center for Neuroscience and Cell Biology (CNC), Health Sciences Campus, Faculty of Pharmacy, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal. Electronic address: fjramos@ci.uc.pt.