Sim, Julius <br/><br/>
Research in health care :  concepts, designs and methods / 
Julius Sim, Chris Wright 
 - Cheltenham :  Nelson Thornes,  2000 
 - ix, 402 p. :  ill. ;  25 cm. 
<br/><br/>References : p. 361-389 
<br/><br/><label>ISBN: </label>0748737189  RM162.23 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Health Services Research<br/>Research design
<br/><br/><label>National Library of Medicine Call No.: </label>W84.3