Funding for this research was provided by:
Fundação para a Ciência e a Tecnologia (IF/00601/2012, SFRH/BD/132751/2017, SFRH/BD/92786/2013)
Instituto Português de Oncologia do Porto (PI 74-CI-IPOP-19-2016)
European Regional Development Fund (IPO/ESTIMA-1 NORTE-01-0145-FEDER-000027)
Text and Data Mining valid from 2019-12-01
Received: 12 August 2019
Accepted: 23 December 2019
First Online: 30 December 2019
Ethics approval and consent to participate
: This study was approved by the institutional ethics committee (CES-IPOFG-EPE 019/08 and CES 120/015).
: Not applicable.
: The authors declare that they have no competing interests.