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Meta-analysis on within-person change of CVA from the mid-to-late follicular to the premenstrual cycle phase (nstudies = 8; nSMD = 12; nindividuals = 280). RMSSD = root mean square of successive differences between adjacent RR intervals; HF = high frequency component in the power spectrum range; n/a = information not available; PMDD = premenstrual dysphoric disorder; PMS = premenstrual syndrome.
