1. Skeletal Clinical Studies Unit (H.D.W., J.Y.T., R.I.G., M.T.C.),Bethesda, Maryland 20892
2. University of Maryland School of Medicine (H.D.W.), Baltimore, Maryland 21201
3. Department of Plastic and Reconstructive Surgery (H.D.W.), Johns Hopkins Hospital, Baltimore, Maryland 21231
4. Division of Endocrinology and Diabetes (A.M.B.), Washington, DC 20010
5. Bone Health Program (A.M.B.), Division of Orthopaedics and Sports Medicine, Children's National Medical Center, Washington, DC 20010
6. Tufts University School of Dental Medicine (J.Y.T.), Boston, Massachusetts 02111
7. University of Michigan Health Systems (F.A.F., J.Z.K.-V.), University of Michigan, Ann Arbor, Michigan 48109
8. Craniofacial and Skeletal Diseases Branch, and Oral and Pharyngeal Cancer Branch (A.A.M.), National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland 20892