WHO expert committee on biological standardization :  Fifty-seventh report / 
World Health Organization. 
 - Geneva :  World Health Organization,  2011. 
 - viii, 206 p. ;  20 cm. 
 - WHO Technical Report Series  0512-3054  962 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>978-92-4-120962-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological products--standards<br/>Vaccines--standards<br/>Reference standards<br/>Guidelines