Collective asthma, simulating an epidemic, provoked by castor-bean dust.
D001249:Asthma / Q000209:etiology*; D002367:Ricinus communis; D004391:Dust; D058872:Epidemics; D006801:Humans; D012639:Seeds
D004391:Dust
ASTHMA/etiology and pathogenesis; CASTOR BEAN; DUST