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Chicago-tyylinen lähdeviittausHopkinson, Nicholas S., Tarek Sharshar, Mark J. Dayer, Frédéric Lofaso, John Moxham, ja Michael I. Polkey. The Effect of Acute Non-invasive Ventilation On Corticospinal Pathways to the Respiratory Muscles in Chronic Obstructive Pulmonary Disease. Elsevier Science, 2012.
MLA-viiteHopkinson, Nicholas S., et al. The Effect of Acute Non-invasive Ventilation On Corticospinal Pathways to the Respiratory Muscles in Chronic Obstructive Pulmonary Disease. Elsevier Science, 2012.