@article{Dzúrová2005,
author = {Dzúrová, D. and Pikhart, H.},
title= {Down syndrome, paternal age and education: comparison of California and the Czech Republic},
year = {2005},
doi = {10.1186/1471-2458-5-69},
journal = {BMC Public Health },
volume = {5},
number = {69},
}