BMJ. 2001 Jul 28;323(7306):224-8.
Systematic reviews of evaluations of prognostic variables.
Altman DG.
Imperial Cancer Research Fund Medical Statistics Group, Centre for Statistics in Medicine, Institute of Health Sciences, Oxford OX3 7LF.
PMID: 11473921 [PubMed - indexed for MEDLINE]
PMCID: PMC1120839
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