Reza Pahlavan Gharehbaba, Aghdas Barkhordari, and Hasan Shahbazi. “First Assessment the Analytical Quality Specification in Clinical Chemistry Laboratory, Using Sigma Scale and EQA/PT in Iran: A Pilot Study”. World Journal of Pharmaceutical Sciences 5, no. 8 (August 1, 2017): 165–170. Accessed December 22, 2024. https://wjpsonline.com/index.php/wjps/article/view/quality-clinical-chemistry-laboratory-sigma-scale.