Sorry I could not find a link on the NPR site.
Here is a link which talks about the study.
Survivor Stress: Layoffs have emotional and practical consequences for those who remain
I wish I could find an NPR download for you because they were discussing how this study might inform us in this more widely dire economic climate. The study was from 2003, but, uh, well this is ...2009.... Does the study still have meaning?