Shortening of the Pittsburgh Sleep Quality Index Survey Using Factor Analysis.
Oluremi A FamoduMakenzie L BarrIda HoláskováWenjun ZhouJesse S MorrellSarah E ColbyMelissa D OlfertPublished in: Sleep disorders (2018)
Data for this study was taken from the Get Fruved study, registered on October 21, 2016, on clinicaltrials.gov (NCT02941497).