Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (UID/CEC/50021/2013, SFRH/BD/51-935/2012)
AMIGOS Project (PTDC/EEISII/7174/2014)
National Centre of Competence in Research Robotics
Article History
Accepted: 19 August 2019
First Online: 20 September 2019
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.