In patients with heart failure, enhanced ventilatory response to exercise is associated with severe obstructive sleep apnea In patients with heart failure, enhanced ventilatory response to exercise is associated with severe obstructive sleep apnea Download Impact of CBTi in COMISA: Could it mean a “masking effect” of the circadian time machinery on psychosocial stress factors? Mandibular advancement device as treatment trial for catathrenia (nocturnal groaning)