Gastroenterology, Hepatology and Nutrition Centre, Pauls Stradiņš Clinical University Hospital, Pilsoņu iela 13, Rīga, LV-1002, LATVIA
Faculty of Chemistry, University of Latvia, Kr. Valdemāra iela 48, Rīga, LV-1013, LATVIA
Faculty of Medicine, University of Latvia, Raiņa bulv. 19, Rīga, LV-1586, LATVIA