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Subject Item
isa:219224528
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The present invention is especially useful in examinations conducted as a preliminary to treating a patient suffering from pulmonary tuberculosis when it is vitally important to know accurately the relative functional efficiencies of the two lungs in order that the character and extent of treatment which may safely be undertaken on either lung can be reliably judged.
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n4:ca
Subject Item
isap:277912832
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isa:219224528