RT Journal Article SR Electronic T1 Disease definitions in respiratory and sleep medicine: changes in diagnostic criteria and categories over time and clinical implications JF Breathe JO Breathe FD European Respiratory Society SP 210117 DO 10.1183/20734735.0117-2021 VO 17 IS 3 A1 Claudia C. Dobler YR 2021 UL http://breathe.ersjournals.com/content/17/3/210117.abstract AB