Siva Jyothi N, Senthil Selvam P, Srikar Narla, Yatheendra Kumar G, Subramanian S S, Jibi Paul, Mallela Bharath Kumar and Ravi Shankar Reddy 2021. Immediate effect of intercostal stretch on chest expansion in healthy smokers. International Journal of Research in Pharmaceutical Sciences. 12, 2 (Jun. 2021), 1639–1643.