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| 0000875045-23-000016.txt | 2023-04-25 16:21:24 | |
 0000875045-23-000016-xbrl.zip | 713610 | 2023-04-25 16:21:24 |
| biib-20230331.htm | 2535168 | 2023-04-25 16:21:24 |
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| biib-2023331xex312.htm | 10654 | 2023-04-25 16:21:24 |
| biib-2023331xex321.htm | 8650 | 2023-04-25 16:21:24 |
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| report.css | 2768 | 2023-04-25 16:21:24 |
| Show.js | 1086 | 2023-04-25 16:21:24 |