PMC:7291971 / 30905-30913
Annnotations
LitCovid-PD-CHEBI
{"project":"LitCovid-PD-CHEBI","denotations":[{"id":"T523","span":{"begin":0,"end":8},"obj":"Chemical"}],"attributes":[{"id":"A523","pred":"chebi_id","subj":"T523","obj":"http://purl.obolibrary.org/obo/CHEBI_49637"}],"text":"hydrogen"}