Sir, d8.1..24.5 <br/><br/>
A short textbook of medical statistics / 
Sir Austin Bradford Hill. 
 - 11th ed. 
 - London :  Hodder and Stoughton,  1984. 
 - University medical texts .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0340347422 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics