Cells that break down bone. This fact sheet was adapted from The Paget Foundation publication Questions & Answers about Osteopetrosis with support from the NIH Osteoporosis and Related Bone Diseases~National Resource Center. For more information about Osteopetrosis, contact: The Paget Foundation for Paget's Disease of Bone and Related Disorders 120 Wall Street, Suite 1602, New York, NY 10005-4001 Toll-free: 800-23-PAGET ยท Phone: 212-509-5335 Fax: 212-509-8492 E-Mail:
[email protected] Internet: www.paget.org