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Studies focused on caregiver support
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Studies not focused on caregiver support, for example, those focused on patient support
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Studies solely focused on symptom management
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Studies focused on service evaluation
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Studies focused on caregiver support during palliative or end of life care
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Studies focused on caregiver support before, during or after treatment, during survivorship or where prognosis was expected to be longer than 1 year
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Studies graded by the systematic review authors, as good quality
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Studies graded by the systematic review authors as weak quality
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Studies of interventions amenable to delivery by hospital-based, registered practitioners (e.g. ward staff)
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Studies focused on psychotherapeutic approaches e.g. cognitive behavioural therapy
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Studies using other therapeutic approaches such as art or music therapy or other focus such as training caregivers to use prompt questions in consultations
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