Funding for this research was provided by:
Portuguese Oncology Institute of Porto (PI 74-CI-IPOP-19-2016)
Portuguese Society of Oncology (Portuguese Society of Oncology -YOuR Project)
Fundação para a Ciência e a Tecnologia (SFRH/BD/132751/2017)
Norte2020 (IPO/ESTIMA-1 NORTE-01-0145-FEDER- 000027)
Received: 27 September 2019
Accepted: 5 February 2020
First Online: 12 February 2020
Ethics approval and consent to participate
: This study was approved by the institutional ethics committee (CES 369/2017). 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. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.