UMRAO, S.; ELANGOVAN , S.; THARAMMAL, M.; QURESHI, M.; MOHAMMED, S.; ALAM, M.; ASHRAF, F.; AMIN, F.; KHAN, M. REPEATED PRESSURE-RELATED CHROMATOGRAPHIC FAILURE DURING SALIVARY CORTISOL ANALYSIS BY LC-HRMS/MS: A LABORATORY CASE REPORT AND HYPOTHESIS-DRIVEN ROOT CAUSE ASSESSMENT. Bulletin of Biological and Allied Sciences Research, [S. l.], v. 2026, n. 1, p. 141, 2026. DOI: 10.64013/bbasr.v2026i1.141. Disponível em: https://bbasr.org/index.php/home/article/view/141. Acesso em: 13 nov. 2026.