1 CICS-UBI-Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal.
2 CPIRN-UDI/IPG-Center of Potential and Innovation in Natural Resources, Research Unit for Inland Development, Polytechnic Institute of Guarda, Avenida Dr. Francisco de Sá Carneiro, No. 50, 6300-559 Guarda, Portugal.