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Sleep duration is associated with vitamin D deficiency in older women living in Macao, China: A pilot cross-sectional study
- Xiaoying Liu,
- Liang Ke,
- Jacky Ho,
- Myriam Abboud,
- Elias Mpofu,
- Tara C. Brennan-Speranza,
- Rebecca S. Mason,
- Kaye E. Brock
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- Published: March 4, 2020
- https://doi.org/10.1371/journal.pone.0229642