1. The role of skeletal calcium deficiency in postmenopausal osteoporosis

   • James M. Burnell
   • David J. Baylink
   • Elizabeth J. Teubner

   Clinical Investigations Pages: 187 - 192

2. Evidence that factors other than 1,25 dihydroxyvitamin D may play a role in augmenting intestinal calcium absorption in patients with primary hyperparathyroidism

   • Megumu Hino
   • Itsuo Yamamoto
   • Kanji Torizuka

   Clinical Investigations Pages: 193 - 196

3. Changes in heated and in laser-irradiated human tooth enamel and their probable effects on solubility

   • B. O. Fowler
   • S. Kuroda

   Clinical Investigations Pages: 197 - 208

4. Modulation of bone loss during calcium insufficiency by controlled dynamic loading

   • L. E. Lanyon
   • C. T. Rubin
   • G. Baust

   Laboratory Investigations Pages: 209 - 216

5. Short-term chronic fluoride administration and trabecular bone remodeling in beagles: A pilot study

   • Gillian R. Snow
   • C. Anderson

   Laboratory Investigations Pages: 217 - 221

6. Parathyroid glands, calcium, and vitamin D in experimental fluorosis in pigs

   • L. Andersen
   • A. Richards
   • O. Fejerskov

   Laboratory Investigations Pages: 222 - 226

7. Cytotoxic and migration inhibitory effects of bisphosphonates on macrophages

   • P. Helen Stevenson
   • John R. Stevenson

   Laboratory Investigations Pages: 227 - 233

8. Human parathyroid hormone (1–34) and salmon calcitonin do not reverse impaired mineralization produced by high doses of 1,25 dihydroxyvitamin D₃

   • M. Gunness-Hey
   • J. M. Hock
   • L. G. Raisz

   Laboratory Investigations Pages: 234 - 238

9. Surface activity on the periosteal and corticoendosteal envelopes following continuous progestogen supplementation in spayed Beagles

   • Kristi K. Karambolova
   • Gillian R. Snow
   • Colin Anderson

   Laboratory Investigations Pages: 239 - 243

10. Bone vitamin D-dependent calcium-binding protein is localized in chondrocytes of growth-plate cartilage

    • X. Y. Zhou
    • D. W. Dempster
    • T. L. Clemens

    Rapid Communication Pages: 244 - 247

11. Announcements

    Announcement Pages: 248 - 248