RT Journal Article
SR Electronic
T1 Purpose and procedure
JF Evidence Based Medicine
JO Evid Based Med
FD BMJ Publishing Group Ltd
SP 97
OP 97
DO 10.1136/ebm.10.4.97
VO 10
IS 4
YR 2005
UL http://ebm.bmj.com/content/10/4/97.abstract
AB