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Human Lung Regional Ventilation Defect Severity Measured by Fluorine-19 Gas MRI
Each subject will receive PFP gas as a contrast agent to visualize the airway and alveolar spaces in their lungs using magnetic resonance imaging of inert gas/oxygen mixtures. (REF# Pro00037791)
Nocturia and Wakefulness
Andrew Krystal, MD, of the Duke Sleep Disorders Center is studying the safety and effectiveness of an investigational drug and how it may improve daytime sleepiness for people who suffer from nocturia. (REF# 28116)
NIDDK: Overnight Insomnia and Nocturia Study
If you are 45 years of age or older and have had trouble with frequent urination, you may qualify to participate in this study. (REF# 26451)