RT Journal Article
SR Electronic
T1 Purpose and procedure
JF Evidence Based Medicine
JO Evid Based Med
FD BMJ Publishing Group Ltd
SP 161
OP 161
DO 10.1136/ebm.10.6.161
VO 10
IS 6
YR 2005
UL http://ebm.bmj.com/content/10/6/161.abstract
AB