Fernández, M. http://orcid.org/0000-0002-3874-3964
Pereira, A.
Corvalán, C.
Mericq, V. http://orcid.org/0000-0003-2287-0181
Funding for this research was provided by:
Fondo Nacional de Desarrollo Científico y Tecnológico (1140447, 1120326, 11170670)
Article History
Received: 15 January 2018
Accepted: 18 July 2018
First Online: 25 July 2018
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: INTAs Ethic Board Committee has approved GOCS according to USA ORP/NIH standards.
: All parents or tutors signed an informed consent form and all children assented to participate when they turned 7 years.