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Cholecalciferol - Wikipedia
胆钙化醇 - 维基百科,自由的百科全书
Cholecalciferol (oral route) - Mayo Clinic
15 Vitamin D3 Benefits and Best Uses for Your Health
Vitamin D - Mayo Clinic
Cholecalciferol (Vitamin D3): MedlinePlus Drug Information
Cholecalciferol - StatPearls - NCBI Bookshelf
Vitamin D vs. D3: What’s the Difference? - Verywell Health
Vitamin D - The Nutrition Source
Vitamin D in Health and Disease - PMC - PubMed Central (PMC)