Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (SFRH/BD/132751/2017, SFRH/BD/112673/2015)
Received: 13 April 2020
Accepted: 30 July 2020
First Online: 5 August 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of Portuguese Oncology Institute of Porto (Comissão de Ética para a Saúde-CES103-14). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Not applicable.
: The authors declare that they have no competing interests.