1. McCulloch JA, Transfeldt EE. MacNab’s Backache. 3d Ed. Baltimore, MD: Williams and Wilkings; 1997:257–276.
2. Landis SH, Murray T, Bolden S, Wingo PA. Cancer Statistics, 1998. CA Cancer J Clin 1998; 48:6–29.
3. Frassica FJ, Gitelis S, Sim FH. Metastatic bone disease: general principles, pathophysiology, evaluation, and biopsy. Instr Course Lect 1992; 41:293–300.
4. Frassica FJ, Sim FH. Pathogenesis and prognosis. In: Sim FH, ed. Diagnosis and Management of Metastatic Bone Disease. A Multidisciplinary Approach. New York, NY: Raven Press; 1988:1–6.
5. Frassica FJ, Sim FH. Bone Pain. In: Taylor R, ed. Difficult Diagnoses II. Philadelphia, PA: WB Saunders; 1992, pp. 52–54.