RT Journal Article
SR Electronic
T1 Appraising the evidence: what is selection bias?
JF Evidence Based Mental Health
JO Evid Based Ment Health
FD BMJ Publishing Group Ltd, Royal College of Psychiatrists and British Psychological Society
SP 67
OP 68
DO 10.1136/ebmh.10.3.67
VO 10
IS 3
A1 Henderson, Max
A1 Page, Lisa
YR 2007
UL http://ebmh.bmj.com/content/10/3/67.abstract
AB