1. Cytokines, hematopoiesis, osteoclastogenesis, and estrogens

   • Stavros C. Manolagas
   • Robert L. Jilka

   Editorial Pages: 199 - 202

2. A comparison of two dual-energy X-ray absorptiometry systems for spinal bone mineral measurement

   • Khai C. Lai
   • Mitchell M. Goodsitt
   • Charles H. Chesnut III

   Clinical Investigations Pages: 203 - 208

3. Biovailability of fluoride in postmenopausal women: Comparative study between sodium fluoride and disodium monofluorophosphate-calcium carbonate

   • Frédéric Lioté
   • Christophe Bardin
   • Daniel Kuntz

   Clinical Investigations Pages: 209 - 213

4. Effects of combined and separate intermittent administration of low-dose human parathyroid hormone fragment (1–34) and 17β-estradiol on bone histomorphometry in ovariectomized rats with established osteopenia

   • V. Shen
   • D. W. Dempster
   • R. Lindsay

   Laboratory Investigations Pages: 214 - 220

5. Regulation of bone turnover and prevention of bone atrophy in ovariectomized beagle dogs by the administration of 24R, 25(OH)₂D₃

   • Toshitaka Nakamura
   • Yumiko Nagai
   • Hajime Orimo

   Laboratory Investigations Pages: 221 - 227

6. Vitamin D metabolites prevent vertebral osteopenia in ovariectomized rats

   • Reinhold G. Erben
   • Harlad Weiser
   • Hermann Zucker

   Laboratory Investigations Pages: 228 - 236

7. Development of monoclonal antibodies to parathyroid hormone-induced resorptive factors from osteoblast-like cells

   • Horace M. Perry III
   • Saral Gurbani

   Laboratory Investigations Pages: 237 - 244

8. Effects of long-term daily administration of prostaglandin-E₂ on maintaining elevated proximal tibial metaphyseal cancellous bone mass in male rats

   • Hua Zhu Ke
   • Webster S. S. Jee
   • Donald B. Kimmel

   Laboratory Investigations Pages: 245 - 252

9. Effect of different phospholipid-cholesterol membrane compositions on liposome-mediated formation of calcium phosphates

   • Drago Skrtic
   • Edward D. Eanes

   Laboratory Investigations Pages: 253 - 260

10. Liposome interactions with hydroxyapatite crystals: A possible mechanism in the calcification of atherosclerotic plaques

    • D. Hirsch
    • W. J. Landis
    • S. Sarig

    Laboratory Investigations Pages: 261 - 265

11. Changes in the solubility of enamel mineral at various stages of porcine amelogenesis

    • T. Aoba
    • E. C. Moreno

    Laboratory Investigations Pages: 266 - 272

12. Localization of malachite green positive lipids in the matrix of bone nodule formed in vitro

    • Jean-Raphaël Nefussi
    • Dominique Septier
    • Michel Goldberg

    Laboratory Investigations Pages: 273 - 282

13. The role of morphogens in endochondral ossification

    • John T. Campbell
    • Frederick S. Kaplan

    Orthopedic Surgical Forum Pages: 283 - 289

14. Measurement of bone cell metabolism in vitro using mass spectrometry

    • Benny T. Dahl
    • Thomas Kiær
    • Bjarne Lund

    Rapid Communication Pages: 290 - 292

15. Etiology of Paget's disease of bone: A new perspective

    • Régis Bataille
    • Bernard Klein

    Letter to the Editor Pages: 293 - 294