@article{articlef6d32218,
title   = {Radiographic contrast. A comparative study of three dental X-ray films},
author = {Tamburus, Jose Roberto and Lavrador, Marco Aurélio Sicchiroli},
year = {1997},
doi = {10.1038/sj.dmfr.4600247},
journal   = {Dentomaxillofacial Radiology}
}