CRESA Barcelona. Spain
Universidad Autónoma de Barcelona Barcelona. Spain
ProAlt Madrid. Spain
VIVACELL Biotechnology España Cordoba, Spain
ERA Biotech Barcelona. Spain
INTA, Buenos Aires. Argentina
Instituto de Agrobiotecnologia. Pamplona. Spain
Biotechnology Department.INIA. Madrid. Spain
Plum Island Animal Disease Center. N.Y. USA
Friedrich-Loefler Institute. Insel Reims. Germany