Zhang, Yingfeng Effect of Low-Dose Vitamin K2 Supplementation on Bone Mineral Density in Middle-Aged and Elderly Chinese: A Randomized Controlled Study. [electronic resource] - Calcified tissue international 05 2020 - 476-485 p. digital Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 1432-0827 Standard No.: 10.1007/s00223-020-00669-4 doi Subjects--Topical Terms: AgedBone DensityCalcium--administration & dosageChinaCholecalciferol--administration & dosageDietary SupplementsDouble-Blind MethodFemaleHumansMaleMiddle AgedOsteoporosis, PostmenopausalPostmenopauseVitamin K 2--administration & dosage