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Comparison of serum concentrations of zinc (A), 25(OH)D (B), and vitamin B12 (C) at the time of admission between no‐ICU admission, ICU admission, and death groups in COVID‐19 patients. Data are the mean ± SEM. *p < 0.05 was considered statistically significant. ns = No significant, **p < 0.01. COVID‐19, coronavirus disease 2019; ICU, intensive care unit
