PMC:7340764 / 4051-4132
Annnotations
LitCovid-PD-CLO
{"project":"LitCovid-PD-CLO","denotations":[{"id":"T23","span":{"begin":19,"end":20},"obj":"http://purl.obolibrary.org/obo/CLO_0001020"}],"text":"ys been considered a foundation of stronger and efficient health systems. The eff"}