title: 3rd International Symposium on Asthma and Chronic Bronchitis in Children and their prognosis into Adult Life, Davos (Switzerland), October 23-24, 1969.
mesh_terms: D001249:Asthma; D001991:Bronchitis; D002648:Child; D002908:Chronic Disease; D003226:Congresses as Topic; D006801:Humans