scholarly journals Economic burden prior to COPD diagnosis: A matched case-control study in the United States

2008 ◽  
Vol 102 (12) ◽  
pp. 1744-1752 ◽  
Author(s):  
Manabu Akazawa ◽  
Rachel Halpern ◽  
Aylin A. Riedel ◽  
Richard H. Stanford ◽  
Anand Dalal ◽  
...  
PLoS ONE ◽  
2018 ◽  
Vol 13 (10) ◽  
pp. e0206205 ◽  
Author(s):  
Victoria Divino ◽  
Rajiv Mallick ◽  
Mitch DeKoven ◽  
Girishanthy Krishnarajah

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