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Characteristics of study subjects (mean ± SD)
| Gender | 7 female: 1 male |
| Ethnicity | 5 Caucasian: 3 Black |
| Age (yrs) | 32 ± 7 |
| Weight (kg) | 71.8 ± 11.8 |
| Body Mass Index (kg/m2) | 25.0 ± 4.9 |
| Systolic blood pressure (mm Hg) | 110 ± 7 |
| Diastolic blood pressure (mm Hg) | 74 ± 8 |
| Pulse (beats per minute) | 67 ± 12 |
