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Epidemiological analysis of some infections with natural foci in the Ulyanovsk region |
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| Authors: | Volkova E G Merkulov A V Nafeev A A |
| Affiliation: | Regional Center of State Sanitary and Epidemiological Inspection, Ulyanovsk, Russia. |
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| 本文献已被 PubMed 等数据库收录！ | |