It seems like there are torrents for anything and everything these days. Music, Movies, Graphic Novels, and everything in-between. Well that also goes for medial torrents. Of course we are talking about only legally available materials here. While I don’t have any specific links to give you here, all you really need to do is search the web. You should also check Legit Torrents specifically to see if they have what you are looking for. They are probably the most popular tracker for legal downloads.
So if you are really looking for this crazy specific medical related download, you might actually find it. I can’t really think of what you would be looking for, maybe some obscure book from ancient times detailing crazy medicine recepies or something and the Internet Archive is down or something. Man you have got to find that out dated technique to save the world! It could happen I suppose. Sounds more like a James Bond film, but we all have our dreams.