Martins, Paula http://orcid.org/0000-0002-2652-3331
Pires, António
Albuquerque, M. Emanuel
Oliveira-Santos, Manuel
Santos, José
Sena, Cristina
Seiça, Raquel
Funding for this research was provided by:
Centre for Mathematics of the University of Coimbra (UID/MAT/00324/2013)
Article History
Received: 30 June 2019
Revised: 6 September 2019
Accepted: 20 September 2019
First Online: 25 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies using animals performed by any of the authors.All procedures performed involving human participants were in accordance with the ethical standards of the institutional committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from parents/legal tutors of all children who were included in the study.