Effect of Large Doses of Parenteral Vitamin D on Glycaemic Control and Calcium Phosphate Metabolism in Patients With Stable Type 2 Diabetes Mellitus: A randomised, Placebo-Controlled, Prospective Pilot Study. Swiss Med Wkly 2014, 144 (1112), w13942. https://doi.org/10.4414/smw.2014.13942.