PMC:7454539 / 140-300 JSONTXT

{"project":"LitCovid-PD-HP","denotations":[{"id":"T3","span":{"begin":119,"end":136},"obj":"Phenotype"}],"attributes":[{"id":"A3","pred":"hp_id","subj":"T3","obj":"http://purl.obolibrary.org/obo/HP_0025421"}],"text":", but one which can be the source of significant concern for clinicians. By presenting 3 such cases, we highlight that pneumomediastinum can complicate the cour"}