Effectiveness of varenicline and counselling for smoking cessation in an observational cohort study in China
Bin Jiang, Yao He, Fang Zuo, Lei Wu, Qing-Hui Liu, Li Zhang, Chang-Xi Zhou, K K Cheng, Sophia S C Chan, Tai Hing Lam
BMJ Open Jan 2016, 6 (1) e009381; DOI: 10.1136/bmjopen-2015-009381