Adaptation of hemagglutination inhibition technique (Hi) for the diagnosis of Newcastle disease in ostriches (Struthio camelus) - Carrasco, Adriano de Oliveira Torres; Freitas Neto, Oliveiro Caetano de; Lages, Sonia Luisa Silva; Sousa, Ricardo Luiz Moro de; Berchieri Junior, Ângelo; Pinto, Aramis Augusto (Virus Reviews & Research, 2008)