@article{articleb3dbf811,
title   = {Genetic grouping of avian infectious bronchitis virus isolated in Brazil based on RT-PCR/RFLP analysis of the S1 gene},
author = {Montassier, Maria de Fátima Silva and Brentano, Liana and Montassier, Hélio José and Richtzenhain, Leonardo José},
year = {2008},
doi = {10.1590/S0100-736X2008000300011},
journal   = {Pesquisa Veterinária Brasileira}
}