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NuCana plchttps://pcaobus.org/form-ap-filings/11558/11558NuCana plc115589/11/2017 1:09:42 PM201606913e32-fcce-4b90-a15d-b2823e9201c01438Ernst & Young LLP681919NuCana plc1709626NCNA0143855083Mark William Harvey0143855083True