Examining the diagnostic validity of the Berlin Questionnaire in a low-income Black American sample Examining the diagnostic validity of the Berlin Questionnaire in a low-income Black American sample Download Treatment usage patterns of oral appliances for obstructive sleep apnea over the first 60 days: a cluster analysis Apnea-hypopnea index vs oxygen desaturation index for diagnosis of obstructive sleep apnea in patients with atrial fibrillation: six of one, half a dozen of the other?