Prof. CHEUNG Yuet-Wah2018-04-252018-04-251990International Journal of the Addictions, 1990-91, vol. 25(5A & 6A), pp. 573-579.1082-60841532-2491http://hdl.handle.net/20.500.11861/5093enOverview: Sharpening the focus on ethnicityPeer Reviewed Journal Article10.3109/10826089109077261