ABSTRACT

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REFERENCES

1. Tashkin DP. Is a long-acting inhaled bronchodilator the first agent to use in stable chronic obstructive pulmonary disease? Curr Opin Pulm Med 2005; 11: 121-128.

2. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease. Document 2006. NHLB/WHO Global initiative for chronic lung Disease. www.goldcopd.org