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Text and Data Mining valid from 2018-03-20
Received: 5 October 2016
Accepted: 6 March 2018
First Online: 20 March 2018
Ethics approval and consent to participate
: The Ethics Committee for Health of the Hospital São João, Portugal, approved this research, assigning it number 288/2014. Signed, informed consent forms were obtained from all participants.
: Not applicable.
: The authors declare they have no competing interests.
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