| Lichtenstein and others 2015 , , y the Academy of Nutrition and Dietetics | , Issue 2, Folder 115, Page 225-230 |
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| , Issue 2, Folder 115, Page 225-230 | Zuoqing Lu, Tai Chen, Michael Holick and others 2007 , , The Journal of steroid biochemistry and molecular biology, Issue 3-5, Folder 103, Page 642-644 |
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