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. 2024 Feb 16;19(5):705–714. doi: 10.1038/s41565-023-01572-3

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© The Author(s) 2024

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Fig. 2 — Top: timeline of randomized study visits. Bottom: study day schedule. Inset images show a volunteer inhaling exposures through a tubed face mask (left) and the ex vivo thrombosis chamber (right; see Fig. 4c). BP, blood pressure; HR, heart rate; MAPCEL, mobile ambient particle concentrator exposure laboratory.