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C-type natriuretic peptide (CNP) levels in the plasma
| CNP level (pg/ml) | |||
| Day 1 | Day 3 | Day 7 | |
| Group A (positive for spasm) | 4.6 ± 0.8 | 4.5 ± 1.0 | 4.2 ± 0.7 |
| Group B (negative for spasm) | 5.8 ± 0.8 | 5.8 ± 2.0 | 6.4 ± 1.7 |
The normal level of CNP was less than 4 pg/ml. Figures are means ± SD. Day 1 is the day of hospitalization.
