Consensus study defining occupational  asthma and confirming the diagnosis.
Niven
R McL
RM
Burge
S
S
Fishwick
D
D
Francis
H C
HC
D001249:Asthma / Q000175:diagnosis*; D032921:Consensus; D006801:Humans; D009784:Occupational Diseases / Q000175:diagnosis*; D012129:Respiratory Function Tests / Q000592:standards