@article{theimpactofexternalinnovationonnewdrug,
  title = {The impact of external innovation on new drug approvals: A retrospective analysis},
  author = {Xiong Liu and Craig E. Thomas and Christian C. Felder},
  year = {2021},
  eprint = {2102.01260},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2102.01260v1},
}