no implicit conversion from nil to integer

PMC:7543325 / 417-464 JSONTXT 2 Projects

Annnotations TAB TSV DIC JSON TextAE

Id Subject Object Predicate Lexical cue tao:has_database_id
23 7-15 Disease denotes COVID-19 MESH:C000657245
19 26-33 Species denotes Patient Tax:9606