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PMC:7281378 / 61969-62152
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T850","span":{"begin":38,"end":39},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"mples collected from six farms [262]. A virological surveillance conducted in Memphis, Tennessee and Madison, Wisconsin during May 1976 to June 1977 successfully isolated 478 influenz"}