| web | https://www.medicalnewstoday.com/articles/some-gut-bacteria-may-protect-against-sars-cov-2-infection |
| author | Mary McGorray, M.D |
| publication | Medical News Today |
| date | 2022-01-06 |
| web | Frank J. Piscotta, Hans-Heinri... | mSphere | 2021-12-01 | |
| web | Frank J. Piscotta, Hans-Heinri... | mSphere | 2021-12-01 |
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