| Literature DB >> 16777894 |
D Graham Mackenzie, Charles J P Saunders, Diptendu N Bhattacharyya, Chris R Steer.
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Year: 2006 PMID: 16777894 PMCID: PMC1479619 DOI: 10.1136/bmj.332.7555.1451-a
Source DB: PubMed Journal: BMJ ISSN: 0959-8138