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Flowchart for identification of patients eligible to the study. The identification of patients eligible for the inclusion criteria in the study was done in 2 steps. *Medical conditions for excluded patients include pediatrics, surgery and care units, malignancies, severe/life-threatening infections, acute respiratory distress syndrome, central nervous system/seizures/meningitis, and gastrointestinal problems. Abbreviations: IV, intravenous; PO, oral.
