Florey, C Du V <br/><br/>
Methods for cohort studies of chronic airflow limitation 

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 - Copenhagen  World Health Organisation  1982 
 - vi, 134p.   
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<br/><br/><label>ISBN: </label>
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>Respiratory diseases  Air flow limitation 
<br/><br/><label>Dewey Class. No.: </label>616.2.001.5