What are some good trauma/first aid youtube channels?

I already subscribe to skinnymedic and a few others but I am looking for some more channels that can give me quick tips, training aids and things like that. I already have some minimal training and am taking my EMT-B class in 2018, but the recent Inrange video and the increase in mass casualty incidents (Paris, London, Manchester) have made me want to step it up a bit. via /r/CCW http://ift.tt/2rUjCMr