Evaluation of Sigma Metrics of Commonly Assayed Biochemical Parameters in a Clinical Laboratory. International Journal of Biomedical and Advance Research, [S. l.], v. 11, n. 9, p. e5514, 2020. Disponível em: https://www.ssjournals.co.in/index.php/ijbar/article/view/5514. Acesso em: 30 may. 2026.