Air Pollution and Emergency Room Admissions for Chronic Obstructive Pulmonary Disease: A 5-year Study

1993 ◽  
Vol 137 (7) ◽  
pp. 701-705 ◽  
Author(s):  
Jordi Sunyer ◽  
Marc Sáez ◽  
Carles Murillo ◽  
Jordi Castellsague ◽  
Francesc Martínez ◽  
...  
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