Links:
[1] http://www3.interscience.wiley.com/cgi-bin/fulltext/123212781/HTMLSTART
[2] http://www3.interscience.wiley.com/cgi-bin/fulltext/123212781/PDFSTART
[3] http://www.agingsocietynetwork.org/millbank-research-press-release-12-14-09
[4] http://www.agingsocietynetwork.org/node/94
[5] http://www.agingsocietynetwork.org/node/128