QUALITY PRACTICES EVALUATION IN THE PRE-ANALYTICAL PHASE OF DIFFERENT CLINICAL LABORATORIES OF THE VALLE DE ABURRÁ. SciELO Preprints, 2023. DOI: 10.1590/SciELOPreprints.5680. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/5680. Acesso em: 12 jun. 2026.