Performance League Tables
| Autor: | Howell, Jonathan, Shiu, M. F., Bridgewater, B., Hooper, T., Campbell, C., Jones, M., Carey, J., Waterworth, P., Deiraniya, A., Yonan, N., Dunn, Peter M., Aslan, Tom |
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| Zdroj: | BMJ: British Medical Journal, 2002 Mar 01. 324(7336), 542-543. |
| Databáze: | JSTOR Journals |
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