Hill, Austin Bradford, Sir, 1897- <br/><br/>
Principles of medical statistics 
By Austin Bradford Hill 
 - 7th ed., rev. and enl. 
 - London  The Lancet  1961 
 - 367 p. : ill. ; 22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical statistics