Original articleAn analysis of Berkson's bias in case-control studies☆
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This research was supported in part by Grant Number HS04101 from the National Center for Health Services Research, OASH; by the Robert Wood Johnson Foundation Grant Number 6309; by a grant from the Andrew W. Mellon Foundation; and by the National Health Research and Development Program (Canada) through a National Health Scientist Award to Dr Walter.
Copyright © 1986 Published by Elsevier Inc.