Shein-Chung, Chow <br/><br/>
Sample Size Calculation in Clinical Research 

 - Boca Raton  CRC Press  2003 
 - ix, 335 P.  Illustration 
<br/><br/><label>ISBN: </label>0824709705 
<br/><br/><label>Dewey Class. No.: </label>519.5  / S32