Telephone surveys are intended to reduce attrition in longitudinal studies. For paediatric chronic pain patients, the comparability of pain‐related information gathered using telephone interviews and postal surveys remain unknown. Furthermore,… Click to show full abstract
Telephone surveys are intended to reduce attrition in longitudinal studies. For paediatric chronic pain patients, the comparability of pain‐related information gathered using telephone interviews and postal surveys remain unknown. Furthermore, it remains unknown how social desirability may influence answers.
               
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