Original language | English |
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Pages (from-to) | 989-990 |
Number of pages | 2 |
Journal | British Medical Journal |
Volume | 328 |
Issue number | 7446 |
Early online date | 19 Mar 2004 |
DOIs | |
Publication status | Published - 24 Apr 2004 |
Acknowledgements
We thank Lesley Jones and Alice Fuller for computing help and John Stapleton for valuable comments and suggestions.Funding
The study was supported by Cancer Research UK. The sponsors of the study had no role in the study design, data collection, data analysis, data interpretation, or writing of the report.
ASJC Scopus subject areas
- General Medicine