Perzanowski, Matthew S <br/><br/>
Endotoxin and asthma.  [electronic resource] 

 -  The New England journal of medicine  Jan 2003 
 - 171-4; author reply 171-4 p.  digital 
<br/><br/> Publication Type: Comment; Letter 
<br/><br/><label>ISSN: </label>1533-4406 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Asthma--epidemiology<br/>Child<br/>Endotoxins--analysis<br/>Environmental Exposure<br/>Humans<br/>Hygiene<br/>Rhinitis, Allergic, Seasonal--epidemiology<br/>United States--epidemiology