We're sorry. This study is closed and no longer recruiting participants.
STUDY BASICS
Men and women needed for a study to help researchers investigate the movement of bones in the neck. Men ages 45-46, 55-60, or 55-60 and women ages 25-45 may be able to participate in this study. Procedures include having a CT scan and high-speed x-rays of your neck, and will involve 1 visit in two locations, lasting about 2.5 hours. Compensation provided.