English: In-Patient Detoxification and Residential Rehabilitation for Substance Misuse: A review of current arrangements for the commissioning, contracting, assessment and management of Tier 4 treatment services in Wales

Welsh: Dadwenwyno Cleifion Mewnol ac Ailsefydlu Preswyl ar gyfer Camddefnyddio Sylweddau: Adolygiad o'r trefniadau cyfredol ar gyfer comisiynu, contractio, asesu a rheoli gwasanaethau triniaeth Haen 4 yng Nghymru