Expert witnesses take the stand.
Proctor
R N
RN
Department of History, Pennsylvania State University, University Park 16802, USA. rnp5@psu.edu
D002170:Canada; D005104:Expert Testimony; D049673:History, 20th Century; D006801:Humans; D011634:Public Health / Q000266:history / Q000331:legislation & jurisprudence*; D035481:Retrospective Moral Judgment; D012586:Science / Q000266:history*; D019460:Tobacco Industry / Q000266:history; D014481:United States