More reluctance in accepting evidence on smoking and cancer.
Pollock
D
D
D004739:England; D049673:History, 20th Century; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology / Q000266:history*; D011634:Public Health / Q000266:history*; D012907:Smoking / Q000009:adverse effects / Q000266:history*