Combined nicotine patch with gum versus nicotine patch alone in smoking cessation in Hong Kong primary care clinics: a randomised controlled trial.
Maria Kwan Wa LeungDan BaiBenjamin Hon Kei YipM Y FongPetty M H LaiPhoebe LaiIrene S Y LaiZoe H W LamAndrew T F LeungDorothy K Y ToM T WongT K WongDavid Vai Kiong ChaoPublished in: BMC public health (2019)
NCT03836560 from ClinicalTrial.gov , 9 Feb 2019.