@misc{misc6861faa6,
title   = {Use of ultracentrifugation technique to increase sensitivity of RT-PCR genotyping of swine ratavirus},
author = {Kroeff, Suzana Silveira and Munford, Veridiana and Hayashi, Y. and Racz, Maria Lucia Barbosa de Oliveira},
year = {1999},
booktitle   = {National Meeting of Virology}
}