From: Appendix C, Evidence Tables: L-Q
Vitamin D and Calcium: A Systematic Review of Health Outcomes.
Evidence Reports/Technology Assessments, No. 183.
Chung M, Balk EM, Brendel M, et al.
Rockville (MD): Agency for Healthcare Research and Quality (US); 2009 Aug.
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.