ALTAF HUSSAIN; MISBAH ULLAH; ABDUR REHMAN BABAR; QAZI SALMAN KHALID; MUHAMMAD KASHIF; ZIA ULLAH KHAN; KHAN ZEB. APPLICATION OF SIX SIGMA DMAIC METHODOLOGY FOR REDUCING PRE-ANALYTICAL AND POST-ANALYTICAL ERRORS IN CLINICAL LABORATORY TESTING. Spectrum of Engineering Sciences, [S. l.], v. 4, n. 4, p. 205–217, 2026. Disponível em: https://www.thesesjournal.com/index.php/1/article/view/2400. Acesso em: 6 nov. 2026.