“Evaluation of Sigma Metrics of Commonly Assayed Biochemical Parameters in a Clinical Laboratory”, Int J of Biomed & Adv Res, vol. 11, no. 9, p. e5514, Sep. 2020, Accessed: Apr. 21, 2026. [Online]. Available: https://ssjournals.co.in/index.php/ijbar/article/view/5514