Caution is Advised on the Use of Quality Grading in Spirometry Santiago C. Arce

Spirometry Outside the Hospital Mário Morais-Almeida, Miguel T. Barbosa, Cláudia S. Sousa, Isabel Almeida, Lara Pimenta, Rita Aguiar

Integrating Spirometry With CT Scan as a Screening Tool in COPD Patients for Referral to Lung Volume Reduction Expert Centers Karin Klooster, Jens T. Bakker, Jorine E. Hartman, Dirk-Jan Slebos