• M.S/PhD in Veterinary Internal Medicine (Clinical Pathology & Diagnostic Cytology), College of Veterinary Medicine Seoul National University, Seoul, The Republic of Korea

• Doctor of Veterinary Medicine, College of Veterinary Medicine Seoul National University, Seoul, The Republic of Korea

• 2008 – 2012 Advised Neodin Animal Medical Research Institute

• 2007-2008 Director of Clinical Pathology at Haemaru 2nd Animal Hospital

• 2008 - Haemaru 2nd Animal Hospital and Advisor

• Choi US, Philippe L, Alleman AR, Kim MS, Lee KC. Cytologic and immunohistochemical characterization of a primitive neuroectodermal tumor in the brain of a dog. Vet Clin Pathol. 2012 Mar;41(1):153-7.

• Choi US, Kim DY. Immunocytochemical detection of Ki-67 in Diff-Quik-stained cytological smears of canine mammary gland tumours. Cytopathology. 2011 Apr;22(2):115-20.

• Seo KW, Choi US, Lee JB, Kim MI, Oh YI, Chung JY, Lee SK, Hwang CY, Youn HY. Central nervous system relapses in 3 dogs with B-cell lymphoma. Can Vet J. 2011 Jul;52(7):778-83.

• Choi US, Labelle P, Kim S, Kim J, Cha J, Lee KC, Lee HB, Kim NS, Kim MS. Successful treatment of an unusually large corneal epithelial inclusion cyst using equine amniotic membrane in a dog. Vet Ophthalmol. 2010 Mar;13(2):122-5.

• Kim MS, Kim DH, Choi US. Penile extramedullary plasmacytoma in a dog. Reprod Domest Anim. 2010 Dec;45(6):e454-7.

• Choi US, Kim HW, You SE, Youn HJ. A suspected case of Lyme borreliosis in a hunting dog in Korea. J Vet Sci. 2009 Mar;10(1):89-91.

• Choi US, Alleman AR, Choi JH, Kim HW, Youn HJ, Lee CW. Cytologic and immunohistochemical characterization of a lung carcinoid in a dog. Vet Clin Pathol. 2008 Jun;37(2):249-52.

• Bhang DH, Choi US, Jung YC, Kim MK, Choi EW, Seo KW, Kang MS, Hwang CY, Kim DY, Youn HY, Lee CW. Topical 0.03% tacrolimus for treatment of pemphigus erythematosus in a Korea Jindo dog. J Vet Med Sci. 2008 Apr;70(4):415-7.

• Bae BK, Kim CW, Choi US, Choi EW, Jee H, Kim DY, Lee CW. Hypercalcemia and high parathyroid hormone-related peptide concentration in a dog with a complex mammary carcinoma. Vet Clin Pathol. 2007 Dec;36(4):376-8.

• Seo KW, Choi US, Jung YC, Hong SJ, Byeun YE, Kang MS, Pachrin B, Kim WH, Hwang CY, Kim DY, Youn HY, Lee CW. Palliative intravenous cisplatin treatment for concurrent peritoneal and pleural mesothelioma in a dog. J Vet Med Sci. 2007 Feb;69(2):201-4.

• Seo KW, Choi US, Bae BK, Park MS, Hwang CY, Kim DY, Youn HY. Mediastinal lymphoma in a young Turkish Angora cat. J Vet Sci. 2006 Jun;7(2):199-201.

• Bhang DH, Choi US, Kim MK, Choi EH, Kang MS, Hwang CY, Kim DY, Youn HY, Lee CW. Epitheliotropic cutaneous lymphoma (mycosis fungoides) in a dog. J Vet Sci. 2006 Mar;7(1):97-9.

• Choi US, Seo KW, Oh SY, Kim DY, Youn HY, Lee CW. Intra-abdominal mass aspirate from a cat in heat. Vet Clin Pathol. 2005 Sep;34(3):275-7.

• Choi US, Jeong SM, Kang MS, Jung IS, Kim DY, Lee CW. Cutaneous lymphoma in a juvenile dog. Vet Clin Pathol. 2004;33(1):47-9.