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2. Twinning as a cause of foetal and neonatal loss in the Thoroughbred mare;Jeffcott;J. Comp. Pathol.,1973
3. Matthews, J. G.: Personal communication, 1979.
4. A review of cytogenetics in equine reproduction;McFeely;J. Reprod. Fert.,1975
5. Aetiological aspects of abortion in the Thoroughbred mare;Platt;J. Comp. Pathol.,1973