Yuki Kobayashi* , Go Sato* , Nobuyuki Mochizuki* , Shinji Hirano* , Takuya Itou , Adolorata AB Carvalho* , Avelino Albas* , Hamilton P Santos* , Fumio H Ito* and Takeo Sakai*
BMC Veterinary Research 2008, 4:44doi:10.1186/1746-6148-4-44