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Research Article: Clinical Characteristics and Medical Utilization of Smokers with Preserved Ratio Impaired Spirometry

Date Published: 2023-10-06

Introduction:
Preserved ratio impaired spirometry (PRISm) is a spirometric impairment being defined as decreased forced expiratory volume in one second (FEV ) <% predicted with FEV /forced vital capacity (FVC) ?.. – The prevalence of PRISm is –%; however, little is known about PRISm because of the exclusion of individuals with this spirometric impairment from previous obstructive lung disease studies. –

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