The citric acid cough threshold and the ventilatory response to carbon dioxide on ascent to high altitude☆
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☆ Funding: This study was funded by a minor research award from Chest Heart and Stroke, Scotland.
PII: S0954-6111(09)00059-6
doi:10.1016/j.rmed.2009.02.007
© 2009 Elsevier Ltd. All rights reserved.
