Human placental lactogen levels and daily insulin requirements in patients with diabetes mellitus complicating pregnancy.

@article{Spellacy1973HumanPL,
  title={Human placental lactogen levels and daily insulin requirements in patients with diabetes mellitus complicating pregnancy.},
  author={William N. Spellacy and J. H. E. Cohn},
  journal={Obstetrics and gynecology},
  year={1973},
  volume={42 3},
  pages={330-3}
}