- Correspondence to: S L Pinto University of Toledo College of Pharmacy, Mail Stop #609, 2801 W Bancroft Street, Toledo, OH 43606, USA;
- Received 11 December 2005
- Accepted 6 June 2006
- Revised 1 June 2006
- Published in print 1 June 2007.
- Published online 25 May 2007.
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