1. Paget's disease of bone: Exploring the questions

   • Frederick S. Kaplan

   Editorial Pages: 1 - 3

2. Risk for developing osteoporosis in untreated premature menopause

   • Alicia C. Bagur
   • Carlos A. Mautalen

   Clinical Investigations Pages: 4 - 7

3. CT image analysis of the vertebral trabecular network in vivo

   • F. Chevalier
   • A. M. Laval-Jeantet
   • C. Bergot

   Clinical Investigations Pages: 8 - 13

4. Enhanced precision with dual-energy x-ray absorptiometry

   • Richard Mazess
   • Charles H. Chesnut III
   • Harry Genant

   Clinical Investigations Pages: 14 - 17

5. Nasal human calcitonin for tumor-induced hypercalcemia

   • J. C. Dumon
   • A. Magritte
   • J. J. Body

   Clinical Investigations Pages: 18 - 19

6. Idiopathic juvenile osteoporosis: Evidence of normal osteoblast function by 1,25-dihydroxyvitamin D₃ stimulation test

   • Silvano Bertelloni
   • G. I. Baroncelli
   • G. Saggese

   Clinical Investigations Pages: 20 - 23

7. Decrease in bone level of 1,25-dihydroxyvitamin D in women over 45 years old

   • Paul Sagiv
   • Cobi Lidor
   • Samuel Edelstein

   Clinical Investigations Pages: 24 - 26

8. Normocalcemia with persistent increase of parathyroid hormone: A prospective study

   • H. Mulder
   • W. H. J. Hackeng
   • H. van der Schaar

   Clinical Investigations Pages: 27 - 29

9. Synthetic parathyroid hormone-like protein (1–74) is anabolic for bone in vivo

   • Eleanor C. Weir
   • Gordon Terwilliger
   • Karl L. Insogna

   Laboratory Investigations Pages: 30 - 34

10. Ca²⁺ uptake by endoplasmic reticulum of renal cortex. I. Ionic requirements and regulation in vitro

    • David W. Moskowitz
    • Keith A. Hruska

    Laboratory Investigations Pages: 35 - 41

11. Ca²⁺ uptake by endoplasmic reticulum of renal cortex. II. Effects of uninephrectomy and parathyroidectomy

    • David W. Moskowitz
    • Keith A. Hruska

    Laboratory Investigations Pages: 42 - 47

12. Osteoclast precursors circulate in avian blood

    • Jose. I. Alvarez
    • F. Patrick Ross
    • Steven L. Teitelbaum

    Laboratory Investigations Pages: 48 - 53

13. Kinetics of β-glycerophosphate-induced endochondral mineralization In vitro. Calcium accumulation, alkaline phosphatase activity, and effects of levamisole

    • B. Zimmermann
    • H. C. Wachtel
    • J. Vormann

    Laboratory Investigations Pages: 54 - 61

14. Alkaline phosphatase and peptidase levels in invertebrate cartilage

    • Richard M. Libbin
    • Albert Hirschman
    • Norman C. Blumenthal

    Laboratory Investigations Pages: 62 - 66

15. Determination of histamine and polyamines in calcified tissues of mice: Contribution of mast cells and histidine decarboxylase to the amount of histamine in the bone

    • Yasuo Endo
    • Takashi Kikuchi
    • Hisashi Shinoda

    Laboratory Investigations Pages: 67 - 71

16. An FT-IR microscopic investigation of the effects of tissue preservation on bone

    • Nancy L. Pleshko
    • Adele L. Boskey
    • Richard Mendelsohn

    Laboratory Investigations Pages: 72 - 77

17. Calcium biomineralization in the radular teeth of the chiton, Acanthopleura hirtosa

    • Louise A. Evans
    • David J. Macey
    • John Webb

    Laboratory Investigations Pages: 78 - 82

18. Soft tissue calcification induced by iron complexes

    • Leopold J. Anghileri

    Laboratory Investigations Pages: 83 - 84

19. Common epitopes of mammalian amelogenins at the C-terminus and possible functional roles of the corresponding domain in enamel mineralization

    • T. Aoba
    • S. Shimoda
    • T. Inage

    Molecular and Cellular Biology Pages: 85 - 91

20. Announcements

    Announcement Pages: 92 - 92