A Preliminary Assessment of The Relationship Between Cellphone Use and Physical Activity, Sedentary Behavior, Anxiety, and Academic Performance in High School Students.: Direct Original Research. Research in Health and Medicine, [S. l.], v. 3, n. 1, 2023. DOI: 10.53520/rdhs2023.10473. Disponível em: https://researchdirects.com/index.php/healthsciences/article/view/73. Acesso em: 20 apr. 2026.