1. Stomatology Department, Faculty of Dentistry, Sevilla University, C/Avicena s/n, 41009 Seville, Spain
2. Private Practice in Psychiatry, C/Peinado, 42 2ªF, 29014 Málaga, Spain
3. Department of Didactics of Mathematics, Didactics of Social Sciences and Experimental Sciences, Avda. Cervantes, 2, 29071 Málaga, Spain
4. Oral and Maxillofacial Unit, Virgen del Rocio Hospital, 41013 Seville, Spain