Severe asthma: definition and mechanisms.
Stirling
R G
RG
National Heart Lung Institute, Imperial College, London, UK.
Chung
K F
KF
D001249:Asthma / Q000175:diagnosis* / Q000453:epidemiology / Q000503:physiopathology / Q000628:therapy*; D003937:Diagnosis, Differential; D006801:Humans; D015995:Prevalence; D012307:Risk Factors; D012720:Severity of Illness Index