1. Diseases of the testes, penis, and related structures;De Vries,1993
2. Reproductive emergencies in the stallion;Perkins;Vet Clin North Am (Equine Practice),1994
3. The effects of increase testicular temperarture on spermatogenesis in the stallion;Friedman;J Reprod Fertil suppl,1991
4. Evaluation breeding soundness in stallions—4: Hormonal assay and testicular biopsy;Blanchard;Vet Med,1996
5. Testicular sonography and biopsy in the stallion-Indication, techniques and diagnostic relevance. 2nd Internationale Konferenz Equine Reproduktiolnsmedizin, 9.-10;Bartmann;Pferdeheikunde, Celle, Germany,1999