Autonomic response to valsalva maneuver in patients of cervical spondylosis. International Journal of Biomedical Research, [S. l.], v. 7, n. 3, p. 131–135, 2016. DOI: 10.7439/ijbr.v7i3.3015. Disponível em: https://ssjournals.co.in/index.php/ijbr/article/view/3015. Acesso em: 31 mar. 2026.