Makuch, R W <br/><br/>
Sample size considerations for non-randomized comparative studies.  [electronic resource] 

 -  Journal of chronic diseases  1980 
 - 175-81 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0021-9681 
<br/><br/><label>Standard No.: </label>10.1016/0021-9681(80)90017-x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Evaluation Studies as Topic<br/>Humans<br/>Sampling Studies