1. CICS-UBI - Health Sciences Research Centre; University of Beira Interior; Covilhã Portugal
2. Chemistry Department; Faculty of Sciences, University of Beira Interior; Covilhã Portugal
3. Medical Sciences Department; Faculty of Health sciences; University of Beira Interior; Covilhã Portugal
4. Ophthalmology Service; Leiria-Pombal Hospital Center; Pombal Portugal