PT  - JOURNAL ARTICLE
AU  - Peter Davies
TI  - The levels of medical effectiveness
AID  - 10.3399/bjgp09X454269
DP  - 2009 Sep 01
TA  - British Journal of General Practice
PG  - 702--703
VI  - 59
IP  - 566
4099  - http://bjgp.org/content/59/566/702.short
4100  - http://bjgp.org/content/59/566/702.full
SO  - Br J Gen Pract2009 Sep 01; 59