Epigenetics of obstructive sleep apnea syndrome: a systematic review Epigenetics of obstructive sleep apnea syndrome: a systematic review Download Utility of cyclic variation of heart rate score as a screening tool for sleep-disordered breathing in patients with heart failure A brief behavioral treatment for unresolved insomnia in adolescents: a single-case multiple baseline pilot study, evaluating self-reported outcomes of efficacy, safety, and acceptability