![Definition of Chronic Obstructive Pulmonary Disease (COPD): Is the Latest GOLD Classification of Severity Still Valid? | Thoracic Key Definition of Chronic Obstructive Pulmonary Disease (COPD): Is the Latest GOLD Classification of Severity Still Valid? | Thoracic Key](https://i0.wp.com/thoracickey.com/wp-content/uploads/2017/09/A370325_1_En_1_Fig2_HTML.gif?w=960)
Definition of Chronic Obstructive Pulmonary Disease (COPD): Is the Latest GOLD Classification of Severity Still Valid? | Thoracic Key
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Satya Patel on X: "1/2 There are two classic phenotypes of COPD that we are taught. 1) "Blue bloater" ➡️ Chronic bronchitis 2) "Pink puffer" ➡️ Emphysema In patients with undiagnosed COPD,
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