The Lancet Handbook of Essential Concepts in clinical research / 
by Kenneth F. Schulz and David A. Grimes; foreword by Richard Horton. 
 - Edinburgh:   Elsevier,  2006. 
 - xi, 223 p. :  ill.(some col.)  19 cm. 
<br/><br/><label>ISBN: </label>978 0 08 044866 4 
<br/><br/><label>LC Class. No.: </label>R850   / .S36 2006