Calcium and Vitamin D Supplementation on Bone Health: Current Evidence and Recommendations - ScienceDirect
COPD and Osteoporosis are related – vitamin D is one possible connection – 2013 | VitaminDWiki
Mega Cal | Calcium & Vitamin D3 – Jamieson Vitamins
How Vitamin D and Calcium Work Together For Strong Bones | H-Wave
Use of calcium or calcium in combination with vitamin D supplementation to prevent fractures and bone loss in people aged 50 years and older: a meta-analysis - The Lancet
Calcium and Vitamin D: Bone Health and More
Effect of Calcium and Vitamin D Supplementation on Bone Density in Men and Women 65 Years of Age or Older | NEJM
Calcium Supplementation for Osteoporosis
Calcium and vitamin D supplements for osteoporosis | MIMS online