Assessment of pleural pressure during sleep in Marfan syndrome-V18I6 Assessment of pleural pressure during sleep in Marfan syndrome-V18I6 Download The differences between daytime and nighttime heart rate variability may usefully predict the apnea-hypopnea index in patients with obstructive sleep apnea-V18I6 Twenty-year follow-up of children with obstructive sleep apnea-V18I6