Mireille M Goetghebeur*, Monika Wagner, Hanane Khoury, Randy J Levitt, Lonny J Erickson and Donna Rindress
* Corresponding author: Mireille M Goetghebeur mireille_goetghebeur@biomedcom.org
BMC Health Services Research 2008, 8:270 doi:10.1186/1472-6963-8-270