Open Access Gastroscopy
Autor: | Cann, P. A., Bramble, M. G., Corbett, W. A., Contractor, B., Hungin, A. S., Zermansky, Arnold, Malcolm, P. N., Chan, T. Y. K., Hately, W. |
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Zdroj: | BMJ: British Medical Journal, 1993 Jun . 306(6894), 1750-1751. |
Databáze: | JSTOR Journals |
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