RT Journal Article
SR Electronic
T1 Letter
JF Evidence Based Medicine
JO Evid Based Med
FD BMJ Publishing Group Ltd
SP 38
OP 38
DO 10.1136/ebm.13.2.38
VO 13
IS 2
A1 Jeremy D P Bland
YR 2008
UL http://ebm.bmj.com/content/13/2/38.1.abstract
AB