ZHANG, Weihua; 						MEHTA, Ashish.
 The historical perspective on pursed lip breathing exercises and its role in pulmonary rehabilitation programs.
<strong>Medical Research Archives</strong>, [S.l.], v. 6, n. 8, aug. 2018.
ISSN 2375-1924.
Available at: &lt;<a href="https://esmed.org/MRA/mra/article/view/1825" target="_new">https://esmed.org/MRA/mra/article/view/1825</a>&gt;. Date accessed: 24 dec. 2024.