AUTHOR=Nascimento-Ferreira Marcus , Saldanha Lima Barbara , Conceição Da Silva Lorrane Cristine , De Moraes Augusto César F. TITLE=Reliability and validity of the online Pittsburgh sleep quality index in college students from low-income regions JOURNAL=Frontiers in Digital Health VOLUME=6 YEAR=2024 URL=https://www.frontiersin.org/journals/digital-health/articles/10.3389/fdgth.2024.1394901 DOI=10.3389/fdgth.2024.1394901 ISSN=2673-253X