@article{null,
  title={Black stains in the mixed dentition: A PCR microbiological study of the etiopathogenic bacteria},
  author={c. saba,m. solidani,f. berlutti,a.vestri,l. ottolenghi,a. polimeni},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={30},
  number={3},
  pages={219--224},
  doi = {10.17796/jcpd.30.3.q1561155x22u0774},
  year={2006}
}