Caregivers and patients undergo psychosocial assessments at approximately 1-3 months prior to randomization and transplantation and again at 1, 3, 6, and 12 months after transplantation. Caregivers also complete questionnaires to assess their stress (PSS, CRA, and IES), mood (POMS, CES-D, and STAI), sleep (PSQI), and health (SF-36).