Idiopathic pulmonary fibrosis is a kind of disease prevalence in recent years, increasing year by year, has gradually become a common disease and frequently encountered disease of respiratory system disease, morbidity and mortality are rising trend. IPF occurs in middle-age males than females. The main clinical manifestations were cough, expectoration, progressive exertional dyspnea. Velcro rale can be heard near the bottom of the lung and the pleural in end-inspiratory.Purple lips and acropachy can be seen...
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