Since 1995, Dr. Ruka is licensed by the College of Veterinarians of Ontario (CVO, license no. 4796) as a Veterinary Clinical Small Animal Organ Transplant Surgeon, only such specialist in Ontario/Canada. He has gained clinical, teaching, applied-clinical research experience with training in soft tissue surgery/microsurgery and organ-transplantation working in an academic environment of Eastern & Western Europe, Middle East, and North America

Dr. MacDonald is graduate in Medicine from Dalhousie University. He did his post-graduate surgical training in the Halifax hospitals with research and training at Harvard University under Professor J.E. Murray and the Cambridge University with Professor Sir R.Y. Calne. He established transplant program in Halifax in 1969 and has been involved in and basic laboratory research in the fields of clinical transplantation and immunology ever since