PMC:7551987 / 13869-13984
Annnotations
2_test
{"project":"2_test","denotations":[{"id":"32971954-25087040-143921959","span":{"begin":68,"end":69},"obj":"25087040"},{"id":"32971954-16299384-143921960","span":{"begin":70,"end":72},"obj":"16299384"}],"text":"ations can have multiple effects on the natural history of disease [2,33]. Our definition of virulence emphasizes t"}