CORD-19:ba334a8f734285257878e0df4e64a6131818d0c6 / 15412-15561 JSONTXT

{"project":"Epistemic_Statements","denotations":[{"id":"T26","span":{"begin":0,"end":149},"obj":"Epistemic_statement"}],"text":"3B ), yet experimental studies to support this model have been greatly hampered by difficulties with attempts to stably express and purify CoV nsp12."}