Good question. I too have an interest in Spinal Cord Injury Medicine. All the fields you listed will see these patients and I've met neurosurgeons, orthopods, radiologists, neurologists, and rehab docs who have a primary interest in SCI. I guess one has to ask what aspects of SCI they find interesting. Neurologists are the driving force behind much of the new research on stem cell therapies, understanding the role of modulating the immune system for therapeutic benefits, regeneration research, excitotoxicity, and neural plasticity. In terms of clinical care, PMNR docs coordinate the care of these patients and are looking into new rehabilitation methods to retrain the nervous system following injury and also do research on the newer prostheses being tested. Orthopods and neurosurgeons see these patients mostly in the acute setting but also do some research. Radiologists are identifying new methods to look at the spinal cord following injury and identifying new exciting methods to study axonal regeneration and plasticity non-invasively. My primary interest is to develop transplantation strategies for SCI. Therefore, neurology and neurosurgery were at the top of my list. I have decided on neurology. Hope this helps.