THANH TRI, Vo; THUY AN, Bui; TRUNG TIN, Le; PHUOC LOI, Le; THI BAO HA, Nguyen. APPLICATION OF SIX SIGMA METHOD EVALUATING THE QUALITY OF PERIPHERAL BLOOD CELL TESTING AT PHUONG CHAU INTERNATIONAL HOSPITAL. Journal of Health and Aging, Vietnam, v. 1, n. 5, p. 100–105, 2025. DOI: 10.63947/bvtn.v1i5.15. Disponível em: https://tcsuckhoelaohoa.vn/bvtn/article/view/87. Acesso em: 5 nov. 2025.