The Prevalence and Severity of Obstructive Sleep Apnea in Severe Obesity: The Impact of Ethnicity The Prevalence and Severity of Obstructive Sleep Apnea in Severe Obesity: The Impact of Ethnicity Download Vallecular Cyst as a Cause of obstructive Sleep apnea in an infant “Nocturnal Seizures” in Idiopathic Pulmonary Arterial Hypertension