Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (SFRH/BPD/112140/2015, SFRH/BPD/93697/2013)
Seventh Framework Programme (REGPOT-CT2012-316331-POLARIS)
Article History
Received: 26 April 2019
Accepted: 29 May 2019
First Online: 8 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
Free to read: This content has been made available to all.