| Hans-Günter Meyer-Thompson | Nikotin
Tobacco and alcohol use among drug users receiving methadone maintenance treatment: a cross-sectional study in a rural prefecture of Yunnan Province, Southwest China.
Duan S, Jin Z, Liu X, Yang Y, Ye R, Tang R, Gao M, Ding Y, He N.
BMJ Open. 2017 Mar 30;7(3):e014643. doi: 10.1136/bmjopen-2016-014643.