Hi, Actually bleeding and leeches are good medical practise in some cases. Just as maggots are being used in wounds. >How do we know that bleeding and leeches are not good >medical practice? Because someone, or several people, >did a lot of work to prove it and wrote it down. And >wrote it down with supporting data so that someone >later could look at what was written and become >convinced without having to repeat everything that >they did.
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