The review was commissioned by Professor Peter Halligan, the Chief Scientific Adviser for Wales, and carried out by Elsevier, an international information analytics company.
Comisiynwyd yr adolygiad gan yr Athro Peter Halligan, Prif Gynghorydd Gwyddonol Cymru, ac fe'i cynhaliwyd gan Elsevier, cwmni dadansoddi gwybodaeth rhyngwladol.