If you're looking for tutorials on scientific medical animations this is a good site; https://www.molecularmovies.com I haven't come across much info online for these things, but based on the reels I've seen from medical animators they seem to do both things on a molecular level and things like surgical and forensic reconstructions a lot of the time, so if you drop them an e-mail at molecularmovies they might be able to point you in the right direction. Nilla