PMC:7210464 / 91849-91903
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T885","span":{"begin":0,"end":54},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"The counterfactual change for date t is ΔYnt=Y~nt−Ynt."}