@article{ritwik p2020versus,
  title={Pulpectomy versus Extraction for the Treatment of Nonvital Primary
Second Molars: A Retrospective Chart Review},
  author={sebourn s,yu q,ritwik p},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={44},
  number={5},
  pages={302--306},
  doi = {10.17796/1053-4625-44.5.3},
  year={2020}
}