Here's the sort of ultimate reference work https://standards.ieee.org/findstds/standard/C95.1-2005.htmlfree to download, has pages of analysis of the literature for every conceivable exposure, both radiated and conducted.
The wrist/ankle thing might be in there, but the original place I saw it was in a USAF report on RF Safety, which I am still looking for. My google-fu is failimg me.
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