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Genetic correlations with the cardiac activity in women with the FMR1 premutation
| CGG repeat length | Quantitative FMRP | Messenger RNA | Activation ratio | |
|---|---|---|---|---|
| IBI | 0.14 | 0.26 | 0.17 | −0.01 |
| RSA | 0.57** | −0.17 | 0.51** | .0.07 |
IBI inter-beat interval, RSA respiratory sinus arrhythmia
**p < 0.01
