PMC:7536914 / 275-453 JSONTXT

{"project":"LitCovid-PD-CLO","denotations":[{"id":"T5","span":{"begin":2,"end":5},"obj":"http://purl.obolibrary.org/obo/CLO_0051582"}],"text":") has been low, especially in specialized clinics; for example, 0.5% of all billable services were provided virtually in Canada in 2015. 1 Prior to March 2020, fewer than 5% of "}