Cholongitas, E <br/><br/>
Are upper gastrointestinal symptoms associated with exacerbations of COPD?  [electronic resource] 

 -  International journal of clinical practice  Jun 2008 
 - 967 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>1742-1241 
<br/><br/><label>Standard No.: </label>10.1111/j.1742-1241.2008.01772.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Cohort Studies<br/>Female<br/>Gastrointestinal Diseases--complications<br/>Humans<br/>Male<br/>Pulmonary Disease, Chronic Obstructive--etiology