News from the National Library of Medicine, from "NLM Technical Bulletin", May-June, 2008, No. 362:
Soon we are likely to encounter — in PubMed’s "AbstractPlus" format — related review articles listed by decreasing relevancy, in a box at the lower right. Above at the right are related references.
For an illustration, see:
*NLM Technical Bulletin, May-Jun 2008, Related Reviews Coming to AbstractPlus in PubMed