@misc{8636,
  author = {M. Eberg and R. Platt and K. Filion},
  title = {The Estimation of Gestational Age at Birth in Database Studies},
  year = {2017},
  journal = {Epidemiology},
  volume = {28},
  number = {6},
  pages = {854-862},
  issn = {1044-3983},
  doi = {10.1097/ede.0000000000000713},
}