Is There a Clinical Role For Smartphone Sleep Apps? Comparison of Sleep Cycle Detection by a Smartphone Application to Polysomnography Is There a Clinical Role For Smartphone Sleep Apps? Comparison of Sleep Cycle Detection by a Smartphone Application to Polysomnography Download Worsening of Obstructive Sleep Apnea Associated with Catheter-Related Superior Vena Cava Syndrome Adverse Effects of Daylight Saving Time on Adolescents’ Sleep and Vigilance