1. Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
2. College of Nursing, University of Utah, Salt Lake City, UT 84112, USA
3. School of Nursing, University of Texas at Austin, Austin, TX 78712, USA
4. College of Nursing, University of Arizona, Tucson AZ 85721, USA
5. Purdue Center for Families, West Lafayette, IN 47907, USA
6. College of Nursing, Purdue University, West Lafayette, IN 47907, USA