Health science research :  a handbook of quantitative methods / 
Jennifer K. Peat ... (et. al) 
 - London :  Sage Publications,  2002 
 - xiv, 312 p. :  ill. ;  24 cm. 
<br/><br/>References : p. 287-301 
<br/><br/><label>ISBN: </label>0761974032  RM117.17 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical sciences--Research<br/>Medical sciences--Statistical methods<br/>Medical statistics--Textbooks<br/>Medicine--Research