Now I am no expert on stroke and TIA – but then neither are you lot!
Here is my lecture for the final year students on the matter.
It is very, very light on evidence and data. In fact, my colleagues would despair – and frequently do. If you want the evidence base, hunt out one of 100’s of review articles on the matter – Prof Google and Dr Bing and can doubtless assist (other search engines are also available).