No abstract available
MeSH terms
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Carbon Dioxide / metabolism
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Helium / administration & dosage*
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Humans
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Infant
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Lung Diseases, Obstructive / therapy*
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Oxygen / administration & dosage*
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Oxygen Inhalation Therapy / methods*
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Respiration, Artificial / methods*
Substances
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Carbon Dioxide
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Helium
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heliox
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Oxygen