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APA Citation
Chang, P., Shiu, M., Yuan, Y., Chang, H., Su, P., & Lan, T. (2019). comparative Effectiveness of Varenicline and Nicotine Replacement Therapy for Smoking Cessation in Older and Younger Smokers: A Prospective Cohort in Taiwan. Nicotine & tobacco research, 21(2), 149–155. http://access.bl.uk/ark:/81055/vdc_100094054210.0x000012