Sleep Disordered Breathing in Group 1 Pulmonary Arterial Hypertension Sleep Disordered Breathing in Group 1 Pulmonary Arterial Hypertension Download Upper Airway Anatomical Balance Contributes to Optimal Continuous Positive Airway Pressure for Japanese Patients with Obstructive Sleep Apnea Syndrome Blood Pressure Improvement with Continuous Positive Airway Pressure is Independent of Obstructive Sleep Apnea Severity