Machin, David, <br/><br/>
Sample size tables for clinical, laboratory and epidemiology studies / 
David Machin, Michael J. Campbell, Say Beng Tan, Sze Huey Tan. 
 - Fourth edition. 
 - 1 online resource. 
<br/><br/> Preceded by Sample size tables for clinical studies / David Machin ... [et al.]. 3rd ed. 2009. 
<br/><br/><label>ISBN: </label>9781118874929 (pdf) 9781118874936 (epub) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research Design<br/>Clinical Studies as Topic<br/>Statistics as Topic<br/>Sample Size
<br/><br/><label>National Library of Medicine Call No.: </label>W 20.55.C5