Proceedings of the 47th symposium organized by the International Association of Biological Standardization and held at the Institute of Child Health, Guilford Street, London WC1, U.K., 22-25 April 1974 / 
acting editors, F. T. Perkins, R. H. Regamey, and W. Hennessen 
 - Basel :  S. Karger,  1975 
 - 657 p. :  ill. ;  24 cm. 
 - Developments in biological standardization ;  vol. 28 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Respiratory organs--Infections--Immunological aspects--Congresses<br/>Respiratory organs--Infections--Preventive inoculation--Congresses<br/>Respiratory organs--Infections--Immunodiagnosis--Congresses