The boundaries of mild chronic obstructive pulmonary disease (COPD): Design of the searching clinical COPD onset (SOON) study

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BMJ Publishing Group

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8

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Abstract

INTRODUCTION: Clinical onset of chronic obstructive pulmonary disease (COPD) is the point at which the disease is first identifiable by physicians. It is a poorly defined stage which seems to include...

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Citation

Labarca G, Bustamante A, Valdivia G, et al. The boundaries of mild chronic obstructive pulmonary disease (COPD): design of the searching clinical COPD onset (SOON) study. BMJ Open 2017;7:e015731. doi:10.1136/bmjopen-2016-015731

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