The website Indigenous News analizes a report carried out by BMC Psychiatry which studied 748 children , whose ages range between 9 and 15 , from nine different schools attended by low socioeconomic classes in the city of Arica , in northern Chile .
Sitio web Indigenous News ukax mä estudio uñart ’ araki BMC Psychiatry tuqin BMC wakicht ’ ata 748 wawanak tuqita Norte de Chile markana .