University Hospital of Wales, Cardiff, UK.
PMID: 15865787 [PubMed - indexed for MEDLINE]
Clin Evid. 2006 Jun; (15):2207-11.
[Clin Evid. 2006]
Clin Evid. 2004 Jun; (11):2133-9.
[Clin Evid. 2004]
Clin Evid. 2003 Dec; (10):1878-83.
[Clin Evid. 2003]
Clin Evid. 2002 Jun; (7):1483-7.
[Clin Evid. 2002]
CMAJ. 2006 Aug 1; 175(3):244.
[CMAJ. 2006]
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