PubMed:33754800 / 278-305 JSONTXT

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    luoyt2021_800_3

    {"project":"luoyt2021_800_3","denotations":[{"id":"T2","span":{"begin":0,"end":27},"obj":"DP"}],"text":"primary knee osteoarthritis"}

    Linmchun_800_3

    {"project":"Linmchun_800_3","denotations":[{"id":"T2","span":{"begin":0,"end":27},"obj":"DP"}],"text":"primary knee osteoarthritis"}