The QLQ-C30 demonstrates good evidence of content validity for the assessment of functional health, symptom burden and health-related quality of life in patients with localised-to-advanced cancer.

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Cocks et al. (Mon,) studied this question.

synapsesocial.com/papers/69dc91d589c4deb67d359298 https://doi.org/https://doi.org/10.1016/j.ejca.2022.10.026

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Content validity of the EORTC quality of life questionnaire QLQ-C30 for use in cancer | Synapse

Also Consider

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