Statistics from Altmetric.com
For correspondence: D A Revicki, Center for Health Outcomes Research, MEDTAP International, 7101 Wisconsin Avenue, Suite 600, Bethesda, MD 20814, USA;
Sources of funding: Abbott Laboratories, Abbott Park, Illinois, USA
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.