1. ICBAS-Institute of Biomedical Sciences Abel Salazar, U. Porto-University of Porto; Laboratory of Histology and Embryology; Department of Microscopy; Rua Jorge Viterbo Ferreira 228 P 4050-313 Porto Portugal
2. CIIMAR/CIMAR-Interdisciplinary Centre of Marine and Environmental Research, U. Porto-University of Porto, Laboratory of Cellular, Molecular and Analytical Studies; Rua dos Bragas 289 P 4050-123 Porto Portugal