COMPARISON OF EXAMINATION OF SODIUM ELECTROLYTE LEVELS IN SERUM USING RED CAP VACUUM TUBES AND YELLOW CAP VACUUM TUBES AT TOTO KABILA HOSPITAL BONE BOLANGO DISTRICT. JHTS [Internet]. 2022 Sep. 22 [cited 2026 Apr. 3];3(3):84-93. Available from: https://journals.ubmg.ac.id/index.php/JHTS/article/view/913