undefined method `each' for nil

PubMed:10022904 / 768-776 JSONTXT

Annnotations TAB JSON ListView MergeView

    bionlp-st-gro-2013-development

    {"project":"bionlp-st-gro-2013-development","denotations":[{"id":"T25","span":{"begin":0,"end":8},"obj":"Enzyme"}],"text":"IKKalpha"}