Journal Article The Authors Response to Waller and Swan Get access Douglas W. Dockery, Douglas W. Dockery Reprint requests to Dr. Douglas W. Dockery, Environmental Epidemiology Program, Harvard School of Public Health, 665 Huntington Avenue, Boston, MA 02115. Search for other works by this author on: Oxford Academic PubMed Google Scholar Joel Schwartz Joel Schwartz Search for other works by this author on: Oxford Academic PubMed Google Scholar American Journal of Epidemiology, Volume 135, Issue 1, 1 January 1992, Pages 23–25, https://doi.org/10.1093/oxfordjournals.aje.a116197 Published: 01 January 1992 Article history Received: 01 August 1991 Published: 01 January 1992
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