Armitage, p.  Berry, G. <br/><br/>
Statistical methods in medical research 

 - 3rd-ed. 
 - London  Blackwell Scientific Publications  1994 
 - 620p.  ix 
<br/><br/>  Book 
<br/><br/><br/>Eng. 
<br/><br/><label>ISBN: </label>0632036958 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medicine - Research statistical methods<br/>Biometry<br/>Research - Methods
<br/><br/><label>National Library of Medicine Call No.: </label>WA 950