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↵* In the highway “safety” field, these phases are termed the “precrash”, “crash”, and “postcrash” phases, respectively.
This is the latest paper in a series of Injury Classics. Our goal is to reprint one or two such papers in each issue to introduce newcomers to these old, often quoted, and important contributions. As many are difficult to find, it should help all of us to have a copy at hand. Your suggestions about future articles are welcome. Write to the editor with details of your favourite, most quoted paper.
This paper first appeared in the) and is reproduced with permission. Copyright 1968 by the American Public Health Association.