NURAENI, Maria; SUDARMI, Lusia; PANGGABEAN, Gabriela Yesisca Noventa. The Effect of Free Space Variation in 3 mL K₂EDTA Vacuum Tube on the Accuracy of Hematocrit and Red Blood Cell Count Tests. Jurnal Riset Kesehatan, [S. l.], v. 15, n. 1, p. 110–117, 2026. DOI: 10.31983/jrk.v15i1.14641. Disponível em: https://ejournal.poltekkes-smg.ac.id/ojs/index.php/jrk/article/view/14641. Acesso em: 26 oct. 2026.