| CD | Celiac Disease |
| MBD | Metabolic Bone Disease |
| BMD | Bone Mineral Density |
| GFD | Gluten-Free Diet |
| PHPT | Primary Hyperparathyroidism |
| PTH | Parathyroid Hormone |
| CaSR | Calcium-Sensing Receptor |
| DEXA | Dual-Energy X-ray Absorptiometry |
| ICTP | Cross-Linked C-Terminal Telopeptide of Collagen Alpha-1 (I) Chain |