 | Ball, R.L.; Morrow, M.; Hofmeyr, M.; Buss, P., 2005. Comparison of anti-phospholipid antibodies between wild and captive black rhinoceros (Diceros bicornis): implications for health and repatriation. Verhandlungsbericht des Internationalen Symposiums uber die Erkrankungen der Zootiere 42: 72-74
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 | Ball, R.L.; Morrow, M., 2002. Comparison of the antiphospholipid syndrome to medical syndromes of captive black rhinos (Diceros bicornis): p. 304, table 1
| In: Schwammer, H.M. et al. A research update on elephants and rhinos: proceedings of the International Elephant and Rhino Research Symposium, Vienna, June 7-11, 2001. Muenster, Schuling: pp. 1-352 |
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 | Ball, R.L.; Morrow, M., 2001. Comparison of the antiphospholipid syndrome to medical syndromes of captive black rhinos (Diceros bicornis): p. 70
| In: Schwammer, H.M. et al. Recent research on elephants and rhinos: Abstracts of the International Elephant and Rhino Research Symposium, June 7-11, 2001. Vienna, Zoologischer Garten: pp. 1-80 |
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 | Ball, R.L.; Morrow, M., 2000. Comparison of the antiphospholipid syndrome to medical syndromes of captive black rhinoceroses (Diceros bicornis). Proceedings of the AAZV and IAAAM Joint Conference 2000: 445-447, tables 1-2
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