Response to: Foulds J and Ramstrom L letter regarding "Causal effects of smokeless tobacco on mortality in CPS-I and CPS-II".
Henley
S Jane
SJ
Thun
Michael J
MJ
D006801:Humans; D008171:Lung Diseases / Q000209:etiology / Q000401:mortality*; D008175:Lung Neoplasms / Q000209:etiology / Q000401:mortality; D009062:Mouth Neoplasms / Q000209:etiology / Q000401:mortality*; D014030:Tobacco, Smokeless / Q000009:adverse effects*