Non-REM sleep–predominant reversible paradoxical breathing effort indicates dysregulation of diaphragm movements in multiple system atrophy Non-REM sleep–predominant reversible paradoxical breathing effort indicates dysregulation of diaphragm movements in multiple system atrophy Download Narcolepsy type 1 features across the life span: age impact on clinical and polysomnographic phenotype Polysomnographic predictors of abnormal brainstem imaging in children