Development and Validation for Taiwan Version ID Pain Questionnaire (ID Pain-T) and DN4 Questionnaire.

Exclusion Criteria

• •Subjects who are illiterate or unable to complete questionnaire.
• •Subjects who are currently participating in another study or have participated in another pain study within one month of study entry.
• •Subjects with low back pain are unable to participate in this study; as the sciatica caused by the piriformis (exclusive of the other types of sciatic pain), lumbago, unclear identification in nerve injury (e.g. complex regional pain syndrome type I) or mixed origin (e.g. cancer pain).