F. Huhtasaari, K. Asplund, V. Lundberg, B. Stegmayr, P. O. Wester
Huhtasaari F, Asplund K, Lundberg V, Stegmayr B, Wester P O.
Tobacco and myocardial infarction: is snuff less dangerous than cigarettes?
British Medical Journal 1992; 305 :1252
doi:10.1136/bmj.305.6864.1252