TY - STAND AU - G. Taylor AU - A. Taylor AU - K. Thomas AU - T. Jones AU - R. Martin AU - M. Munafo AU - F. Windmeijer AU - N. Davies BT - Int J Epidemiol DO - 10.1093/ije/dyx109 M1 - 6 PY - 2017 SP - 1948 EP - 1957 T2 - Int J Epidemiol TI - The effectiveness of varenicline versus nicotine replacement therapy on long-term smoking cessation in primary care: a prospective cohort study of electronic medical records VL - 46 SN - 0300-5771 ER -