Proceding of the 32nd. symposium organized by the permanent section of micro :  iological standardization and held at hotel Gravenbruch, Frankfurt / 
Acting editors: W. Hennessen, F. T. Perkins and R. H. Regamey 
 - Basel :  S. Karger,  1971 
 - x, 326 p. ;   25 cm. 
 - Symposia series in immunobiological standardization v. 17 .
<br/><br/> English or French. 
<br/><br/>Includes bibliographies. 
<br/><br/><br/>engfre 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BCG vaccines--Standards--Congresses