Smoking and risk of coronary heart disease in younger, middle-aged, and older adults

Janne S. Tolstrup, Ulla A. Hvidtfeldt, Esben Meulengracht Flachs, Donna Spiegelman, Berit L. Heitmann, Katarina Bälter, Uri Goldbourt, Göran Hallmans, Paul Knekt, Simin Liu, Mark Pereira, June Stevens, Jarmo Virtamo, Diane Feskanich