[1] North Carolina State Univ, Dept Psychol, Campus Box 7650, Raleigh, NC 27695 USA
[2] Harvard Med Sch, Div Sleep Med, Boston, MA USA
[3] Dana Farber Canc Inst, Dept Psychosocial Oncol & Palliat Care, Boston, MA USA
[4] Univ Missouri, Dept Psychol Sci, Columbia, MO USA
[5] Univ Virginia, Sch Educ & Human Dev, Charlottesville, VA USA