The communities for which this term is applied are often hunter-gatherer or agrarian.
The medicine man is an artist who applies with skill the [endemic knowledge]? about healing arts to the local folklore.
''I am not qualified to edit this page, but I am qualified to ask one applies "healing arts" to a folklore, local or otherwise.''
Not unlike the modern day physician who practice is measured in court against the norm of practice within the local community.
This is not a sentence. Can someone, anyone help out here?