Hill, Austin Bradford  Sir  1897- <br/><br/>
Principles of Medical Statistics/ 
by A. Bradford Hill 
 - 4th ed., rev. and enl. 
 - London:  The Lancet Limited,  1949 
 - xi, 251p.:  illus. 1949 
<br/><br/>Includes bibliographical references and indexes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical statistics<br/>Statistics