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Revista Portuguesa de Pneumologia (English Edition) > 2009 > 15 > 4 > 575-587
Revista Portuguesa de Pneumologia (English Edition) > 2006 > 12 > 5 > 545-561
Revista Portuguesa de Pneumologia (English Edition) > 2009 > 15 > 4 > 575-587
Revista Portuguesa de Pneumologia (English Edition) > 2006 > 12 > 5 > 545-561