@article{tomomichi oka2006case,
  title={A Case of Sialolithiasis in a Child},
  author={tomomichi oka,jouji nomura,yoshihiko matsumura,shigeaki yanase,takayuki nagata,shiori uno,toshiro tagawa},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={31},
  number={2},
  pages={139--141},
  doi = {10.17796/jcpd.31.2.k846l578232g26tr},
  year={2006}
}