Pollock, T M <br/><br/>
Trials of prophylactic agents for the control of communicable diseases  a guide to their Organisation and evaluation 

 - Geneva  World health Organisation  1966 
 - 92p.; 24cm. 
 - World health Organisation monograph series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communicable diseases<br/>Ethics<br/>Group allocation<br/>Prophylactic agents