Giri, Harshal, et al. “Effectiveness of Normobaric Hypoxic Mask Training on VO₂ Max and Endurance Adaptations in Male Athletes Aged 20–30: An Observational Intervention Study”. Journal of Neonatal Surgery, vol. 14, no. 9S, Sept. 2025, pp. 1051-5, https://jneonatalsurg.com/index.php/jns/article/view/9055.