Compressed air, as a therapeutic agent, in the treatment of consumption, asthma, chronic bronchitis, and other diseases / by Archibald Simpson ; with a preface by William MacLeod.

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Compressed air, as a therapeutic agent, in the treatment of consumption, asthma, chronic bronchitis, and other diseases / by Archibald Simpson ; with a preface by William MacLeod. Public Domain Mark. Source: Wellcome Collection.

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