ANUSREE M; DR.SURIYAN.S.NAIR; DR.RESHMA KIRAN; DR.JANICE D’SA; DR.PRATHIMA M.B; DR KIRAN KUMAR PK. SIGMA METRICS AS A TOOL FOR EVALUATING THE PERFORMANCE OF INTERNAL QUALITY CONTROL IN A CLINICAL CHEMISTRY LABORATORY OF A TERTIARY HOSPITAL. Journal of Population Therapeutics and Clinical Pharmacology, [S. l.], v. 32, n. 10, p. 512–524, 2025. DOI: 10.53555/ngjsw281. Disponível em: https://jptcp.com/index.php/jptcp/article/view/12187. Acesso em: 21 nov. 2025.