De Kock, G.; Alexander, R.A.; Clark, R.; Louw, J.G.; De Kock, V.E.
(Published by The Government Printer, Pretoria, 1954)
1. Newcastle Disease, after intramuscular inoculation of virulent virus, was
characterised by pathognomonic lesions in the spleen, the gastro-intestinal tract,
and the nervous system.
2. In the Spleen degenerative changes ...