Oral High-Dose Vitamin D Dissolved in Oil Raised Serum 25-Hydroxy-Vitamin D to Physiological Levels in Obese Patients After Sleeve Gastrectomy-A Double-Blind, Randomized, and Placebo-Controlled Trial.
Eva WolfMarkus UtechPeter StehleMartin BüsingHans-Peter HelfrichBirgit Stoffel-WagnerSarah EgertBirgit AlteheldRaute RiegeAnnette KnappSabine EllingerPublished in: Obesity surgery (2018)
This trial was registered retrospectively on November 14, 2014, at the German Clinical Trials Register as DRKS00007143.