RT Journal Article
SR Electronic
T1 Commentary: What is a propensity score?
JF British Journal of General Practice
JO Br J Gen Pract
FD British Journal of General Practice
SP 687
OP 687
DO 10.3399/bjgp08X342471
VO 58
IS 555
A1 Jennifer Nicholas
A1 Martin C Gulliford
YR 2008
UL http://bjgp.org/content/58/555/687.abstract
AB