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APA Citation
Padmanaban, V., Collins, C., Lound, A., Lee, C., Mallia, P., & Elkin, S. (n.d.). s9 The role of ambulatory oxygen in improving the effectiveness of pulmonary rehabilitation for patient with chronic obstructive pulmonary disease – single blinded randomised trial. Thorax, 74, A8. http://access.bl.uk/ark:/81055/vdc_100137790656.0x000026