PMC:7435837 / 27020-27159 JSONTXT

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    2_test

    {"project":"2_test","denotations":[{"id":"32731428-32115186-71421339","span":{"begin":25,"end":28},"obj":"32115186"}],"text":"ansport to the hospital [142]. FFP2 and FFP3/N95 masks offer significant protection against airborne particles and even then the FFP3 masks"}