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Authors
Margozzini, Paula
Berríos, Rodrigo
Cantarutti, Cynthia
Veliz, Claudia
Ortuno, Duniel http://orcid.org/0000-0001-5425-5779
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Article History
Received: 10 February 2019
Accepted: 22 May 2019
First Online: 4 June 2019
Ethics approval and consent to participate
: This study is nested in the NHS 2016–2017, whose protocols and written informed consent were approved by the Scientific Ethics Committee of the Faculty of Medicine of Pontificia Universidad Católica de Chile (CEC-MedUC, Project number 16–019). For telephone questionnaire, after we explained the purpose of the sub-study, verbal informed consent was obtained from the participants.
: Not applicable.
: The authors declare that they have no competing interests.
