Nguyen , N. N.; Pham , T. L. P.; Tran , T. T. T.; Tran , C. D.; Nguyen, . T. D. T.; Nguyen, . T. B. THE EFFECT OF CONCOMITANT VITAMIN B12 AND FERRITIN DEFICIENCY ON CERTAIN RED BLOOD CELL PARAMETERS IN END-STAGE RENAL DISEASE PATIENTS UNDERGOING REGULAR HEMODIALYSIS. VMJ 2024, 544.