Sethi, Sanjay <br/><br/>
Airway bacterial concentrations and exacerbations of chronic obstructive pulmonary disease.  [electronic resource] 

 -  American journal of respiratory and critical care medicine  Aug 2007 
 - 356-61 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>1073-449X 
<br/><br/><label>Standard No.: </label>10.1164/rccm.200703-417OC  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aged<br/>Aged, 80 and over<br/>Colony Count, Microbial<br/>Female<br/>Haemophilus--isolation & purification<br/>Humans<br/>Longitudinal Studies<br/>Male<br/>Middle Aged<br/>Moraxella catarrhalis--isolation & purification<br/>Prospective Studies<br/>Pulmonary Disease, Chronic Obstructive--physiopathology<br/>Sputum--microbiology<br/>Streptococcus pneumoniae--isolation & purification