Development of a New Tool for Dyspnea Measurement in Chronic Respiratory Diseases

copd (with - without rehabilitation), diffuse interstitial lung diseases, pulmonary arterial hypertension primary or secondary (post embolic .....), cystic fibrosis of the adult, dyspnea, self-administered questionnaire, chronic respiratory disease, copd, pulmonary arterial hypertension, cystic fibrosis, observational