Search our collection of background (non-event) articles from news media, science journals and other sources.
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6 | 9 |
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2 | 1 | 3 | 2 | 2 | 4 | 1 |
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FALL | 2 | |
SPRING | 2 | |
SUMMER | 1 |
United States | 5 | |
Canada | 3 | |
Ireland | 1 | |
Italy | 1 |