1. Laboratory for Perceptual and Cognitive Systems, Faculty of Science and Technology , University of Latvia , 19 Raiņa Blvd ., Rīga , , Latvia
2. Department of Internal Diseases , Rīga Stradiņš University , 16 Dzirciema Str ., Rīga , , Latvia
3. Pauls Stradiņš Clinical University Hospital , 13 Pilsoņu Str ., Rīga , , Latvia
4. Rīga East University Hospital , 2 Hipokrāta Str ., Rīga , , Latvia