PMC:7281378 / 24307-24393
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T308","span":{"begin":54,"end":55},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"N1 antibodies in Toyama Prefecture between 1978–1982. A lower seroprevalence was obser"}