Abdallah, A. N., A. A. Shamaa, and O. S. el-Tookhy, "Ethidium Bromide Induced Spinal Cord Demyelination in a Dog model of Multiple Sclerosis ", Bioscience Research, vol. 15, issue 3, pp. 2260-2271, 2018.
Shamaa, A. A., O. S. el-Tookhy, and A. N. Abdallah, "Progressive model of multiple sclerosis following ethidium bromide injection in dogs’ spinal cord: failure of remyelination", Bioscience Research, vol. 15, issue 3, pp. 2327-2337, 2018.
el-Tookhy, O. S., A. A. Shamaa, G. G. Shehab, A. N. Abdallah, and O. M. Azzam, "Histological Evaluation of Experimentally Induced Critical Size Defect Skin Wounds Using Exosomal Solution of Mesenchymal Stem Cells Derived Microvesicles", International Journal of Stem Cells, vol. 10, issue 2, pp. 144-153, 2017.
El-Ghoul, W., O. El- Tookhy, and S. Gadallah, "Conventional Plain and Positive Contrast Radiographic Imaging of the Skull in Dogs and Cats", Vet. Med., vol. 54, issue 2, no. 2, pp. 359–378, 2005. Abstract

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Torad, F., O. El- Tookhy, and A. A. Shamaa, "The use of Tramadol HCl for prolongation and intensification of Lidocaine HCl caudal epidural anaesthesia in horses", Minufiya Vet. J, vol. 5, issue 2, no. 2, pp. 595–601, 2008. Abstract

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Mokbel, A., O. El- Tookhy, A. A. Shamaa, D. Sabry, L. Rashed, and A. Mostafa, "Homing and efficacy of intra-articular injection of autologous mesenchymal stem cells in experimental chondral defects in dogs", Clinical and Experimental Rheumatology, vol. 29, issue 2, pp. 275-284, 2011. Abstract

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Ali, A., A. F. Ahmed, E. E. Mehana, O. El- Tookhy, and A. Al-Hawas, Unilateral Seminoma in a Dromedary Camel, , vol. 10.1111/j.1439-0531.2012.02036.x: Reprod Dom Anim , 2012. Abstract

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Abu-Seida, A. M., O. El- Tookhy, and A. A. Kawkab, "A Comparison between Surgery and Surgery Adjunctive with Immunotherapy for Treatment of Ocular Squamous Cell Carcinoma in cattle", Egypt. Vet. Med. Assoc, vol. 68, issue 3, 2008. Abstract

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Ali, A., F. A. Al-Sobayil, R. Derara, and O. El- Tookhy, "Ultrasonographic fetometry and prenatal fetal sex assessment in camels (Camelus dromedarius)", Theriogenology, vol. 80, no. 6, pp. 609–618, 2013. Abstract

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