Journal Article THE AUTHOR REPLIES Get access Sander Greenland Sander Greenland Division of Epidemiology UCLA School of Public HealthLos Angeles, CA 90024–1772 Search for other works by this author on: Oxford Academic PubMed Google Scholar American Journal of Epidemiology, Volume 128, Issue 5, November 1988, Pages 1182–1184, https://doi.org/10.1093/oxfordjournals.aje.a115068 Published: 01 November 1988
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Sander Greenland (1988) studied this question.