@article{Martin2005,
author = {Martin, J.A. and Hamilton, B.E. and Sutton, P.D. and Ventura, S.J. and Menacker, F. and Munson, M.L.},
title= {Births: Final data for 2003},
year = {2005},
volume = {54},
number = {2},
pages = {1--116},
}