RT Journal Article SR Electronic T1 NICE asthma guidelines: time to re-evaluate the diagnostic value of exercise challenge testing? JF ERJ Open Research JO erjor FD European Respiratory Society SP 00447-2022 DO 10.1183/23120541.00447-2022 VO 9 IS 2 A1 Andrew J. Simpson A1 Oliver J. Price YR 2023 UL http://openres.ersjournals.com/content/9/2/00447-2022.abstract AB