Saxena, J., Gupta, S. and Saxena, S. (2006) “‘A study of change of posture on the pulmonary function tests : can it help copd patients ?’”, Indian Journal of Community Health, 18(1), pp. 10–12. Available at: http://iapsmupuk.org/journal/index.php/IJCH/article/view/108 (Accessed: 24 November 2024).