Exceptional Siblings: The Andrade Brothers

Affiliations

• ¹ CINTESIS, Department of Education and Psychology, University of Aveiro, Aveiro, Portugal.
• ² CINTESIS, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal.
• ³ CINTESIS, School of Education of Viseu, Polytechnic Institute of Viseu, Viseu, Portugal.
• ⁴ Institute for the Analysis of Change in Historical and Contemporary Societies (IACCHOS), Université Catholique de Louvain, Louvain, Belgium.
• ⁵ Estonian Institute for Population Studies, Tallinn University, Taillin, Estonia.