- Dr G Logroscino, Department of Epidemiology HSPH 3-819 Harvard University, 677 Huntington Avenue, Boston, MA 02115, USA;
- Received 9 February 2007
- Revised 12 May 2007
- Accepted 17 May 2007
- Published in print 1 January 2008.
- Published online 13 December 2007.
- Published first 5 June 2007.
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