In the present study, although the zinc group showed a much lower length of stay than vitamin A, on comparing the effects of zinc and vitamin A on hospitalization length of stay, the difference was not statistically significant which might be attributed to the short period of the study due to the short total period of patients’ hospital residence either in the ICU or the inpatient ward, according to the physicians’ decisions, not the researchers, where, this obtained difference might be significant in case of a longer period of supplementation administration time.
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Effect of zinc versus vitamin A supplementation on pediatric patients with community-acquired pneumonia.
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