1. Department of Psychology, University of Houston, Houston, TX 77008, USA
2. Department of General Oncology and the Integrative Medicine Program, The University of Texas MD Anderson Cancer Center, 1400 Holcombe, Unit 462, Houston, TX 77030, USA
3. College of Nursing, The University of Nebraska Medical Center, Room 5071, 985330 Nebraska Medical Center, Omaha, NE 68198-5330, USA
4. Department of Medicine-Hematology and Oncology, University Hospitals Seidman Cancer Center, Case Western Reserve University, 11100 Euclid Avenue, Cleveland, OH 44106, USA