CORD-19:3c1f47a07aaf0e393dee9fbd08596a4b9f4f0a03 / 10577-10632 JSONTXT

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    CORD-PICO

    {"project":"CORD-PICO","denotations":[{"id":"p1_all55","span":{"begin":0,"end":55},"obj":"Outcome"}],"text":"Substantial recontamination towards pre-cleaning levels"}