In light of the change to the organ and tissue donation system, the Welsh Government commissioned GfK to carry out research to help understand NHS staff views on the change.
Yng ngoleuni'r newid i'r system rhoi organau a meinwe, comisiynwyd GfK gan Lywodraeth Cymru i gynnal ymchwil er mwyn helpu i ddeall barn staff y GIG am y newid.