TY - STAND AU - K. Thomas AU - R. Martin AU - N. Davies AU - C. Metcalfe AU - F. Windmeijer AU - D. Gunnell BT - Bmj DO - 10.1136/bmj.f5704 PY - 2013 EP - f5704 T2 - Bmj TI - Smoking cessation treatment and risk of depression, suicide, and self harm in the Clinical Practice Research Datalink: prospective cohort study VL - 347 SN - 0959-8138 ER -