Influence of vitamin D supplementation on fracture risk, bone mineral density and bone biochemistry in Mongolian schoolchildren: multicenter double-blind randomized placebo-controlled trial.

Ganmaa D, Khudyakov P, Buyanjargal U, Tserenkhuu E, Erdenenbaatar S, Achtai CE, Yansan N, Delgererekh B, Ankhbat M, Tsendjav E, Ochirbat B, Jargalsaikhan B, Davaasambuu E, Martineau AR.