1. The Natural History of Cervical Disc Calcification in Children by Li-Yang Dai, Hua Ye, and Qi-Rong Qian J Bone Joint Surg Am Volume 86(7):1467-1472 July 1, 2004 ©2004 by The Journal of Bone and Joint Surgery, Inc.

2. A seven-year-old boy (Case 8 in the Appendix) was admitted to our hospital with pain and a stiff neck. Li-Yang Dai et al. J Bone Joint Surg Am 2004;86:1467-1472 ©2004 by The Journal of Bone and Joint Surgery, Inc.

3. A five-year-old boy (Case 13 in the Appendix) was seen with neck pain, torticollis, and arm pain. Li-Yang Dai et al. J Bone Joint Surg Am 2004;86:1467-1472 ©2004 by The Journal of Bone and Joint Surgery, Inc.

4. A ten-year-old girl (Case 12 in the Appendix) had neck pain, torticollis, arm pain, and numbness on the medial aspect of the forearm extending to the long finger. Li-Yang Dai et al. J Bone Joint Surg Am 2004;86:1467-1472 ©2004 by The Journal of Bone and Joint Surgery, Inc.

5. A twelve-year-old girl (Case 14 in the Appendix) with cervical disc calcification between C3 and C4. Li-Yang Dai et al. J Bone Joint Surg Am 2004;86:1467-1472 ©2004 by The Journal of Bone and Joint Surgery, Inc.

6. Li-Yang Dai et al. J Bone Joint Surg Am 2004;86:1467-1472 ©2004 by The Journal of Bone and Joint Surgery, Inc.

7. Li-Yang Dai et al. J Bone Joint Surg Am 2004;86:1467-1472 ©2004 by The Journal of Bone and Joint Surgery, Inc.

8. Complete disappearance of the calcific deposits three years later. Li-Yang Dai et al. J Bone Joint Surg Am 2004;86:1467-1472 ©2004 by The Journal of Bone and Joint Surgery, Inc.