| web | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/6188564A01361C5CF5F196229430E475/S0007114511007161a.pdf/div-class-title-traditionally-living-populations-in-east-africa-have-a-mean-serum-25-hydroxyvitamin-d-concentration-of-115-nmol-l-div.pdf |
| author | Luxwolda MF, Kuipers RS |
| publication | Br J Nutr |
| date | 2012-01-23 |
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