Toward the formulation of a theory of asthma.
Leff
A R
AR
Department of Medicine, University of Chicago, Illinois 60637.
D001249:Asthma / Q000209:etiology* / Q000266:history; D049670:History, 17th Century; D049671:History, 18th Century; D049673:History, 20th Century; D049690:History, Ancient; D006801:Humans