Risk of COPD exacerbation is increased by poor sleep quality and modified by social adversity-V45I8 Risk of COPD exacerbation is increased by poor sleep quality and modified by social adversity-V45I8 Download Tobacco smoke exposure and inadequate sleep among U.S. school-aged children-V86 Magnetic resonance imaging abnormalities as a marker of multiple system atrophy in isolated rapid eye movement sleep behavior disorder-V44I1