Assertion: syphilis's disease | /r/HasProperty | based on skeletal changes
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text: To establish criteria for distinguishing among the three diseases based on skeletal changes the Rothschilds analyzed a North American collection of skeletons for syphilis cases (diagnosed at autopsy), a collection from Guam predating 1668 for yaws (the only treponemal disease on the island before then), and early historic Near Eastern Bedouin for bejel (bejel is endemic to the region).