Blood letting is back!
> "Despite all the technical advances in modern medicine, in certain post-surgical situations, we do still rely on one of nature’s most primitive organisms – the leech – to assist us in achieving a good outcome,” says Rod Rezaee, MD, UH otolaryngologist and head and neck surgeon.
https://www.uhhospitals.org/blog/articles/2020/03/how-leeche...