A Comparative Study of Sleep Quality and Heart Rate Variability Index in Shifts and Non-Shift Working Population of Bengaluru. International Journal of Physiology, [S. l.], v. 7, n. 4, p. 54–57, 2019. DOI: 10.37506/ijop.v7i4.57. Disponível em: https://www.ijop.net/index.php/ijop/article/view/57. Acesso em: 25 may. 2026.