Gellir cael copi o'r llythyr adolygu mesurau arbennig a anfonwyd i Fwrdd Iechyd Prifysgol Betsi Cadwaladr oddi wrth Swyddfa Archwilio Cymru ac Arolygiaeth Gofal Iechyd Cymru, ac ymateb y Bwrdd, yn:
A copy of the Wales Audit Office and Healthcare Inspectorate Wales special measures review letter to Betsi Cadwaladr University Health Board and its response is available at: