Dahl's Sign: An Indicator of Severe Chronic Obstructive Pulmonary Disease

Sreenath Meegada; Madhavi Annakula; Tejo Challa; Suman Siddamreddy; Prashanth Peddi; Sreenath Meegada; Madhavi Annakula; Tejo Challa; Suman Siddamreddy; Prashanth Peddi

doi:10.7759/cureus.6865

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