Hill, Austin Bradford <br/><br/>
Bradford hill's principles of medical stalistical 
by Austin Bradford Hill, I.D.Hill. 
 - 12th ed.. 
 - New Delhi  B.J.Publication  1993 
 - viii, 339p.; 23cm. 
<br/><br/><label>ISBN: </label>8172250274 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics Medicial Statistics 
<br/><br/><label>Dewey Class. No.: </label>610.212  / H64B