| Literature DB >> 12098724 |
Y Y Gong1, K Cardwell, A Hounsa, S Egal, P C Turner, A J Hall, C P Wild.
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Year: 2002 PMID: 12098724 PMCID: PMC116667 DOI: 10.1136/bmj.325.7354.20
Source DB: PubMed Journal: BMJ ISSN: 0959-8138