Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=hbsm20 Behavioral Sleep Medicine ISSN: (Print) (Online) Journal homepage: https://www.tandfonline.com/loi/hbsm20 Correlates of Sleep Duration in Early Childhood: A Systematic Review Zhiguang Zhang , Eduarda Sousa-Sá , João R. Pereira , Anthony D. Okely , Xiaoqi Feng & Rute Santos To cite this article: Zhiguang Zhang , Eduarda Sousa-Sá , João R. Pereira , Anthony D. Okely , Xiaoqi Feng & Rute Santos (2020): Correlates of Sleep Duration in Early Childhood: A Systematic Review, Behavioral Sleep Medicine, DOI: 10.1080/15402002.2020.1772264 To link to this article: https://doi.org/10.1080/15402002.2020.1772264 View supplementary material Published online: 04 Jun 2020. Submit your article to this journal Article views: 6 View related articles View Crossmark data