Premature 26-28 weeks: 11 0-1376 ng/dL Premature 29-36 weeks: 70-455 ng/dL Term 1-5 months: 10-200 ng/dL 6-35 months: 9-232 ng/dL 3-6 years: 7-342 ng/dL 7-9 years: less than or equal to 94 ng/dL 10-12 years: less than or equal to 123 ng/dL 13-15 years: less than or equal to 107 ng/dL 16-17 years: less than or equal to 47 ng/dL 18 years and older: Less than 33 ng/dL
| Premature 26-28 weeks: 11 0-1376 ng/dL Premature 29-36 weeks: 70-455 ng/dL Term 1-5 months: 10-200 ng/dL 6-35 months: 8-201 ng/dL 3-6 years: 8-243 ng/dL 7-9 years: less than or equal to 120 ng/dL 10-12 years: less than or equal to 92 ng/dL 13-15 years: less than or equal to 95 ng/dL 16-17 years: less than or equal to 106 ng/fdL 18 years and older: Less than 50 ng/dL
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