Bruce, Nigel. <br/><br/>
Quantitative methods for health research :  a practical interactive guide to epidemiology and statistics / 
Nigel Bruce, Daniel Pope, and Debbi Stanistreet. 
 - Chichester, West Sussex :  John Wiley & Sons,  2008. 
 - xiii, 538 p. :  ill. ;  25 cm. 
<br/><br/>References : p. [527]-528 
<br/><br/><label>ISBN: </label>9780470022740  RM467.10 9780470022757 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiologic Methods.<br/>Biometry--methods.<br/>Biomedical Research--methods.