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This article reports the psychometric properties of two new condition-specific questionnaires: 1) the 18-item Underactive Thyroid-Dependent Quality of Life Questionnaire (ThyDQoL) individualized measure of perceived impact of hypothyroidism on quality of life (QoL); and 2) the 15-item Underactive Thyroid Symptom Rating Questionnaire (ThySRQ), in which patients rate symptom bother. A cross-sectional...
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