de Arauz LJ, Buzzo ML, Mataveli LRV, Tiglea P. EVALUATION OF THE EFFECTIVENESS OF PARTICIPATION IN PROFICIENCY TESTING PROGRAMS IN THE QUALITY CONTROL OF THE ANALYTICAL RESULTS IN THE DETERMINATION OF METALS AND SEMIMETALS IN WATER IN A PUBLIC HEALTH LABORATORY. Infarma [Internet]. 2019 Oct. 7 [cited 2024 Oct. 6];31(3):177-86. Available from: https://revistas.cff.org.br/infarma/article/view/2525