Thomas M, McKinley RK, Mellor S, et al. Breathing exercises for asthma: a randomised controlled trial. Thorax. 2009;64(1):55-61. doi:10.1136/thx.2008.100867
Thomas M, McKinley RK, Mellor S, et al. Breathing exercises for asthma: a randomised controlled trial. Thorax. 2009;64(1):55-61. doi:10.1136/thx.2008.100867
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