Typographic Settings for Structured Abstracts
http://baywood.metapress.com/link.asp?target=contribution&id=H306J8B7WXD2A6Y6
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  peer-reviewed

Hartley, James
Journal of Technical Writing and Communication
2000

Abstract:

Structured abstracts contain more information, are of higher quality, and are easier to search and read than are traditional abstracts. However, there is a bewildering variety of ways in which structured abstracts can be printed and little is known about how the typography of structured abstracts can affect their clarity. The aim of this article is to delineate some of these major typographic variables and to comment on their effects upon the layouts of structured abstracts.