@article{article,
title = {Vitamin K in the aged, with special reference to the clinical significance of the urinary gamma-carboxy glutamic acid content as a new indicator for the vitamin K status},
author = {},
year = {1983},
journal = {Nihon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics},
volume = {20},
number = {2},
pages = {128-132},
howpublished = "\url{https://eurekamag.com/research/044/966/044966106.php}"
}