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Aira Aija Krūmiņa
Riga Stradins University, Faculty of Public Health and Social Welfare, Department of Health, Psychology and Pedagogy, 26a Anniņmuižas Blvd, Rīga, LV-1067, Latvia
Jelena Ļubenko
Riga Stradins University, Faculty of Public Health and Social Welfare, Department of Health, Psychology and Pedagogy, 26a Anniņmuižas Blvd, Rīga, LV-1067, Latvia