The authors have voluntarily retracted this article  and it is no longer available for online public display because portions of the article are similar to a previous publication . While there was no intention to use pre-existing work without appropriate attribution, the authors nonetheless extend their apologies to Dr. Miller and all others concerned.
Bioethics 2010, 24(9):453-460.
Published online: 7 July 2009PubMed Abstract | Publisher Full Text
The pre-publication history for this paper can be accessed here: