BMJ. 2006 Sep 30;333(7570):667-8. doi: 10.1136/bmj.38958.498484.80.
BMJ (Clinical research ed.)
Kristin McCarthy, Pamela Prentice
PMID: 17008648 PMCID: PMC1584382 DOI: 10.1136/bmj.38958.498484.80
[No abstract available.]