@article{Lenhart1943,
author = {Lenhart, R.F.},
title= {Completeness of birth registration in the United States in 1940},
year = {1943},
doi = {10.2105/AJPH.33.6.685},
journal = {American Journal of Public Health and the Nations Health},
volume = {33},
number = {6},
pages = {685--690},
}