Declining incidence of episodes of asthma.
Weller
T
T
Booker
R
R
Walker
S
S
D001249:Asthma / Q000453:epidemiology / Q000451:nursing*; D005194:Family Practice; D015994:Incidence; D009726:Nurses / Q000600:supply & distribution; D006113:United Kingdom / Q000453:epidemiology; D000078329:Workforce