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. 1989 Apr 15;298(6679):1034-5.

NHS review

No authors listed

NHS review

No authors listed. BMJ. .
No abstract available

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References

    1. Br Med J (Clin Res Ed). 1987 Oct 10;295(6603):898-900 - PubMed
    1. Br Med J (Clin Res Ed). 1987 Oct 3;295(6602):836-8 - PubMed

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