Utarbayeva Indira Kenzhebayevna. “ANALYSIS OF PRE-ANALYTICAL FACTORS AFFECTING THE ACCURACY OF SEROLOGICAL TESTS IN DIAGNOSTICS OF HEPATITIS B AND C”. Foundations and Trends in Research, no. 10 (July 21, 2025). Accessed July 22, 2026. https://ojs.publisher.agency/index.php/FTR/article/view/6586.