Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (SFRH/BD/72307/2010, SFRH/BDP/88374/2012)
Article History
Received: 18 September 2018
Revised: 16 January 2019
Accepted: 19 March 2019
First Online: 10 April 2019
Compliance with ethical standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.