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Help researchers by sharing your information.

It only take a few minutes to help make a difference.

The NPDPSC compiles statistics which, we hope, will provide useful scientific and demographic information. Once you complete the questionnaire, we will ask you to sign a permission form. If you have previously completed a questionnaire and are willing to allow us to share the information with the NPDPSC, please email your permission to help@cjdfoundation.org.

Please note that the completion of a questionnaire is completely voluntary.