Cheung, Y. T. D., Chan, C. H. H., Ho, K. S., Tang, C., Lau, C. W. H., Li, W. H. C., . . . Lam, T. H. (2020). Effectiveness of nicotine replacement therapy sample at outdoor smoking hotspots for initiating quit attempts and use of smoking cessation services: A protocol for a cluster randomised controlled trial. BMJ Open.

Cheung, Yee Tak Derek, Ching Han Helen Chan, Kin Sang Ho, Celeste Tang, Chloe Wing Hei Lau, William Ho Cheung Li, Man Ping Wang, e Tai Hing Lam. "Effectiveness of Nicotine Replacement Therapy Sample At Outdoor Smoking Hotspots for Initiating Quit Attempts and Use of Smoking Cessation Services: A Protocol for a Cluster Randomised Controlled Trial." BMJ Open 2020.

Cheung, Yee Tak Derek, et al. "Effectiveness of Nicotine Replacement Therapy Sample At Outdoor Smoking Hotspots for Initiating Quit Attempts and Use of Smoking Cessation Services: A Protocol for a Cluster Randomised Controlled Trial." BMJ Open 2020.