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Journal
Chest
Volume
133
Issue
2
Pages
343-9
Publication year
2008
Suggested citation
Caballero A, Torres-Duque CA, Jaramillo C, Bolívar F, Sanabria F, Osorio P, Orduz C, Guevara DP, Maldonado D. Prevalence of COPD in five Colombian cities situated at low, medium, and high altitude (PREPOCOL study). Chest. 2008; 133(2): 343-9.