1. Acute adult asthma;Nowak,1988
2. Asthma: An update;Saunders;Diagn Med,1978
3. Sir John Floyer's “A Treatise of the Asthma (1698)”;Sakula;Thorax,1984
4. CIBA Guest Symposium: Terminology, Definitions, and Classification of Chronic Pulmonary Emphysema and Related Conditions,1959
5. Definitions and clinical categories of asthma;Scadding,1983