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Journal Article Invited Commentary: In Defense of Ecologic Studies for Testing a Linear-No Threshold Theory Get access Bemard L. Cohen Bemard L. Cohen From the Radon Project, Department of Physics and Astronomy100 Allen HalfUniversity of PittsburghPittsburgh, PA 15260 Send reprint requests to Dr. Bemard L. Cohen at this address. Search for other works by this author on: Oxford Academic PubMed Google Scholar American Journal of Epidemiology, Volume 139, Issue 8, 15 April 1994, Pages 765–768, https://doi.org/10.1093/oxfordjournals.aje.a117071 Published: 15 April 1994 Article history Received: 28 December 1992 Revision received: 18 May 1993 Published: 15 April 1994
Bemard L. Cohen (Fri,) studied this question.