BMJ. 2008 Apr 19;336(7649):848. doi: 10.1136/bmj.39549.485660.3A.
BMJ (Clinical research ed.)
Sacha C Haworth
PMID: 18420672 PMCID: PMC2323049 DOI: 10.1136/bmj.39549.485660.3A
[No abstract available.]