Comparing different intensities of active referral to smoking cessation services in promoting smoking cessation among community smokers: a study protocol of a cluster randomized controlled trial

• Xue WengUniversity of Hong Kong
• Man Ping WangUniversity of Hong Kong
• Yi Nam SuenQueen Mary Hospital
• William Ho Cheung LiUniversity of Hong Kong
• Yongda Socrates WuUniversity of Hong Kong
• Yee Tak Derek CheungUniversity of Hong Kong
• Antonio Cho Shing KwongHong Kong Council on Smoking and Health
• Vienna LaiHong Kong Council on Smoking and Health
• Sophia Siu Chee ChanUniversity of Hong Kong
• Tai Hing LamUniversity of Hong Kong