Propiedades discriminativas y validez de un cuestionario de salud en pacientes con enfermedad obstructiva de la vía respiratoria: el Airway Questionnaire 20 (AQ20)

This study shows that the AQ20 is an accurate health status questionnaire in patients with moderate-to-severe airway obstruction. It could be an alternative to longer, traditional questionnaires such as the SGRQ.