@article{article,
title = {Low vitamin D status is associated with physical inactivity, obesity and low vitamin D intake in a large US sample of healthy middle-aged men and women},
author = {},
year = {2010},
journal = {Journal of Steroid Biochemistry and Molecular Biology},
volume = {121},
number = {1-2},
pages = {462-466},
howpublished = "\url{https://eurekamag.com/research/054/187/054187336.php}"
}