1
by Bush, David E.
Published 2005
Agency for Healthcare Research and Quality

2
Published 2010
British Psychological Society

3
by Rauchfleisch, Udo
Published 1981
Vandenhoeck & Ruprecht

5
by Buchholz, Michael B.
Published 1993
Vandenhoeck & Ruprecht

6
by Borck, Cornelius
Published 2005
Fink

7
by Gottschalk-Mazouz, Niels
Published 2008
Vandenhoeck & Ruprecht

8
Published 2012
The British Psychological Society and The Royal College of Psychiatrists

9
Published 1999
National Academy Press

10
Published 2014
National Academies Press