%0 Journal Article %A Ian R. Reid %T Calcium and vitamin D: To supplement or not? %D 2018 %R 10.3949/ccjm.85a.18026 %J Cleveland Clinic Journal of Medicine %P 693-698 %V 85 %N 9 %U https://www.ccjm.org/content/ccjom/85/9/693.full.pdf