EVALUATION OF EARLY SERUM POTASSIUM CHANGES AND ECG FINDINGS IN PATIENTS WITH MEGALOBLASTIC ANEMIA RECEIVING PARENTERAL VITAMIN B12 THERAPY. Frontier in Medical and Health Research, [S. l.], v. 3, n. 5, p. 2326–2332, 2025. Disponível em: https://fmhr.net/index.php/fmhr/article/view/2782.. Acesso em: 27 jul. 2026.