@article{Kasahara2013,
author = {Kasahara, A.K. and Singh, R.J. and Noymer, A.},
title= {Vitamin D (25OHD) serum seasonality in the United States},
year = {2013},
doi = {10.1371/journal.pone.0065785},
journal = {PLoS One},
volume = {8},
number = {6},
pages = {e65785},
}