1. Center for Nursing Science and Clinical Inquiry (CNSCI), Landstuhl Regional Medical Center , Landstuhl Kirchberg, Rheinland-Pfalz 66849, Germany
2. Institute for Social Research (ISR), University of Michigan , Ann Arbor, MI 48106-1248, USA
3. University of Utah College of Nursing, University of Utah , Salt Lake City, UT 84112-5880, USA
4. Indiana University School of Nursing, Indiana University , Indianapolis, IN 46202, USA
5. Department of Nursing, Naval Medical Center San Diego , San Diego, CA 92134, USA