1. MD Anderson Cancer Center, The University of Texas, Houston, TX, USA
2. American Institutes for Research, Arlington, VA, USA
3. Department of Educational Studies in Psychology, Research Methodology, and Counseling, The University of Alabama, Tuscaloosa, AL, USA
4. Texas Institute for Rehabilitation and Research (TIRR) Memorial Hermann, Houston, TX, USA
5. University of Texas Health Science Center at Houston, Houston, TX, USA