Comparative effects of vitamin K and vitamin D supplementation on prevention of osteopenia in calcium-deficient young rats
Bone (2003) - Comment
pubmed: 14555259  doi: 10.1016/s8756-3282(03)00249-7  issn: 8756-3282 

J Iwamoto, J K Yeh, T Takeda, S Ichimura, Y Sato