Bruna, Flavia
Plaza, Anita
Arango, Martha
Espinoza, Iris
Conget, Paulette http://orcid.org/0000-0002-2530-7936
Funding for this research was provided by:
FONDECYT-Chile (1130670)
Article History
Received: 17 February 2018
Revised: 16 April 2018
Accepted: 17 April 2018
First Online: 11 May 2018
Ethics approval and consent to participate
: This study was approved by the Ethic Committee of Facultad de Medicina Clinica Alemana-Universidad del Desarrollo (approval ID: 2011-14).
: The authors declare that they have no competing interests.
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