“…14,146,147 Health-related quality-of-life instruments From the 14 primary studies found on HRQoL of patients with liver metastases, only three report the use of a preference-based measure -the generic instrument European Quality of Life-5 Dimensions (EQ-5D). 146,147,149,151 All 14 studies report the use of a non-preference-based instrument, either generic 139,[143][144][145]149,151 or condition-specific, 137,138,148,150 or the use of both. 14,120,121,[140][141][142]146,147 No publications involving a condition-specific preference-based measure were found.…”