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. 2020 Dec 10;12:1161–1172. doi: 10.2147/NSS.S273875

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© 2020 Alfonsi et al.

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Pre-post changes in subjective sleepiness and sleep concerns across the school year. Means (and SE) of scores at the Pittsburgh sleep quality index (PSQI) and Epworth sleepiness scale (ESS) at the beginning and end of the academic year.