@article{article71f99123,
title   = {Occurrence of primary incisor traumatism in brazilian children: a house-by-house survey},
author = {Bijella, Maria Francisca Thereza Boro and Yared, Fatima Nazare Ferreira Gazel and Bijella, Vitoriano Truvijo and Lopes, Eymar Sampaio},
year = {1990},
journal   = {Journal of Dentistry for Children}
}