What do you think about shamans? Here in Finland we usually talk about shamans and kanjiras instead of witches etc. Some years ago I heard from my classmate that he has shamans in his family tree and told me about them and blood stoppers.
He told me that sometime at the 50-60's in a hospital mom was giving a birth but had very bad internal bleeding and doctors failed in operation. Then they called a blood stopper at the hospital, he whispered a few minutes at mom's ears something and then internal bleeding stopped and mom and the baby survived.