Document Classification

Section Type: RESULTS

Text: The mean ELF concentrations at 4, 8, 12, and 24 h were as follows : MXF, 11. 7 + / - 11. 9, 7. 8 + / - 5. 1, 10. 5 + / - 3. 7, and 5. 7 + / - 6. 3 micro g/mL, respectively ; LEVO, 15. 2 + / - 4. 5, 10. 2 + / - 6. 7, 6. 9 + / - 4. 4, and 2. 9 + / - 1. 7 micro g/mL, respectively ; and AZI, 0. 6 + / - 0. 4, 0. 7 + / - 0. 4, 0. 9 + / - 0. 5, and 0. 9 + / - 0. 7 micro g/mL, respectively.